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<article data-uid="Hi.Geom.Solvers.SolverUtil">
<h1 id="Hi_Geom_Solvers_SolverUtil" data-uid="Hi.Geom.Solvers.SolverUtil" class="text-break">
Class SolverUtil
</h1>
<div class="facts text-secondary">
<dl><dt>Namespace</dt><dd><a class="xref" href="Hi.html">Hi</a>.<a class="xref" href="Hi.Geom.html">Geom</a>.<a class="xref" href="Hi.Geom.Solvers.html">Solvers</a></dd></dl>
<dl><dt>Assembly</dt><dd>HiGeom.dll</dd></dl>
</div>
<div class="markdown summary"><p>Utility class providing advanced numerical solving methods for systems of equations.</p>
</div>
<div class="markdown conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static class SolverUtil</code></pre>
</div>
<dl class="typelist inheritance">
<dt>Inheritance</dt>
<dd>
<div><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object">object</a></div>
<div><span class="xref">SolverUtil</span></div>
</dd>
</dl>
<dl class="typelist inheritedMembers">
<dt>Inherited Members</dt>
<dd>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object)">object.Equals(object)</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.equals#system-object-equals(system-object-system-object)">object.Equals(object, object)</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gethashcode">object.GetHashCode()</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.gettype">object.GetType()</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.memberwiseclone">object.MemberwiseClone()</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.referenceequals">object.ReferenceEquals(object, object)</a>
</div>
<div>
<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.object.tostring">object.ToString()</a>
</div>
</dd></dl>
<h2 class="section" id="properties">Properties
</h2>
<a id="Hi_Geom_Solvers_SolverUtil_LinearSlowIterationFunc_" data-uid="Hi.Geom.Solvers.SolverUtil.LinearSlowIterationFunc*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_LinearSlowIterationFunc" data-uid="Hi.Geom.Solvers.SolverUtil.LinearSlowIterationFunc">
LinearSlowIterationFunc
</h3>
<div class="markdown level1 summary"><p>Gets a linear function for slow iteration convergence.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static Func&lt;double, double&gt; LinearSlowIterationFunc { get; }</code></pre>
</div>
<h4 class="section">Property Value</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>, <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>&gt;</dt>
<dd></dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_LogSlowIterationFunc_" data-uid="Hi.Geom.Solvers.SolverUtil.LogSlowIterationFunc*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_LogSlowIterationFunc" data-uid="Hi.Geom.Solvers.SolverUtil.LogSlowIterationFunc">
LogSlowIterationFunc
</h3>
<div class="markdown level1 summary"><p>Gets a logarithmic function for slow iteration convergence.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static Func&lt;double, double&gt; LogSlowIterationFunc { get; }</code></pre>
</div>
<h4 class="section">Property Value</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>, <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>&gt;</dt>
<dd></dd>
</dl>
<h2 class="section" id="methods">Methods
</h2>
<a id="Hi_Geom_Solvers_SolverUtil_DeepSolveArray_" data-uid="Hi.Geom.Solvers.SolverUtil.DeepSolveArray*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_DeepSolveArray_System_Func_System_Double___System_Double____System_Int32_System_Double___System_Double___System_Double_System_Func_System_Double_System_Double__System_Int32_System_Int32_System_Int32_" data-uid="Hi.Geom.Solvers.SolverUtil.DeepSolveArray(System.Func{System.Double[],System.Double[]},System.Int32,System.Double[],System.Double[],System.Double,System.Func{System.Double,System.Double},System.Int32,System.Int32,System.Int32)">
DeepSolveArray(Func&lt;double[], double[]&gt;, int, double[], double[], double, Func&lt;double, double&gt;, int, int, int)
</h3>
<div class="markdown level1 summary"><p>Performs deep solving of a function with multiple parameters.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static IEnumerable&lt;DeepSolvingStatus&gt; DeepSolveArray(Func&lt;double[], double[]&gt; func, int outputNum, double[] para, double[] dpara, double convergenceLimit, Func&lt;double, double&gt; slowIterationFunc = null, int maxDirectIteration = 6, int maxSlowIteration = 6, int maxTotalIteration = 1200)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>The function to solve.</p>
</dd>
<dt><code>outputNum</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>The number of output values.</p>
</dd>
<dt><code>para</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The initial parameter values.</p>
</dd>
<dt><code>dpara</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter delta values.</p>
</dd>
<dt><code>convergenceLimit</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd><p>The convergence limit.</p>
</dd>
<dt><code>slowIterationFunc</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>, <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>&gt;</dt>
<dd><p>The function for slow iteration.</p>
</dd>
<dt><code>maxDirectIteration</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>The maximum number of direct iterations.</p>
</dd>
<dt><code>maxSlowIteration</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>The maximum number of slow iterations.</p>
</dd>
<dt><code>maxTotalIteration</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>The maximum total number of iterations.</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;<a class="xref" href="Hi.Geom.Solvers.DeepSolvingStatus.html">DeepSolvingStatus</a>&gt;</dt>
<dd><p>An enumerable of deep solving status objects.</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_GetApproxInv_" data-uid="Hi.Geom.Solvers.SolverUtil.GetApproxInv*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_GetApproxInv_System_Double_0__0___System_Double_" data-uid="Hi.Geom.Solvers.SolverUtil.GetApproxInv(System.Double[0:,0:],System.Double)">
GetApproxInv(double[,], double)
</h3>
<div class="markdown level1 summary"><p>Calculates an approximate inverse of a matrix using SVD decomposition.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static double[,] GetApproxInv(double[,] mat, double availableAccumulatedWeightRatio = 0.99999999)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>mat</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[,]</dt>
<dd><p>The input matrix.</p>
</dd>
<dt><code>availableAccumulatedWeightRatio</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd><p>The ratio of accumulated weights to consider.</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[,]</dt>
<dd><p>The approximate inverse matrix.</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_GetApproxInvAndOrthogonalPaces_" data-uid="Hi.Geom.Solvers.SolverUtil.GetApproxInvAndOrthogonalPaces*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_GetApproxInvAndOrthogonalPaces_System_Double_0__0___System_Collections_Generic_List_System_ValueTuple_System_Double_System_Double______" data-uid="Hi.Geom.Solvers.SolverUtil.GetApproxInvAndOrthogonalPaces(System.Double[0:,0:],System.Collections.Generic.List{System.ValueTuple{System.Double,System.Double[]}}@)">
GetApproxInvAndOrthogonalPaces(double[,], out List&lt;(double eigenValue, double[] v)&gt;)
</h3>
<div class="markdown level1 summary"><p>Calculates an approximate inverse of a matrix and returns orthogonal paces using SVD decomposition.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static double[,] GetApproxInvAndOrthogonalPaces(double[,] mat, out List&lt;(double eigenValue, double[] v)&gt; orthogonalPaces)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>mat</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[,]</dt>
<dd><p>The input matrix.</p>
</dd>
<dt><code>orthogonalPaces</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.list-1">List</a>&lt;(<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.valuetuple-system.double,system.double[]-.eigenvalue">eigenValue</a>, <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[] <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.valuetuple-system.double,system.double[]-.v">v</a>)&gt;</dt>
<dd><p>The output list of orthogonal paces with eigenvalues and eigenvectors.</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[,]</dt>
<dd><p>The approximate inverse matrix.</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_GetBiases_" data-uid="Hi.Geom.Solvers.SolverUtil.GetBiases*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_GetBiases_System_Func_System_Double___System_Double____System_Double___System_Double___" data-uid="Hi.Geom.Solvers.SolverUtil.GetBiases(System.Func{System.Double[],System.Double[]},System.Double[],System.Double[])">
GetBiases(Func&lt;double[], double[]&gt;, double[], double[])
</h3>
<div class="markdown level1 summary"><p>Calculates the bias values between function outputs and target values.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static double[] GetBiases(Func&lt;double[], double[]&gt; func, double[] paras, double[] targets)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>The function to evaluate.</p>
</dd>
<dt><code>paras</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter values.</p>
</dd>
<dt><code>targets</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The target values.</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The bias values.</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_GetCosSinTermRotationMat4d_" data-uid="Hi.Geom.Solvers.SolverUtil.GetCosSinTermRotationMat4d*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_GetCosSinTermRotationMat4d_Hi_Geom_Vec3d_System_Double_System_Double_" data-uid="Hi.Geom.Solvers.SolverUtil.GetCosSinTermRotationMat4d(Hi.Geom.Vec3d,System.Double,System.Double)">
GetCosSinTermRotationMat4d(Vec3d, double, double)
</h3>
<div class="markdown level1 summary"></div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static Mat4d GetCosSinTermRotationMat4d(Vec3d axis, double cos, double sin)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>axis</code> <a class="xref" href="Hi.Geom.Vec3d.html">Vec3d</a></dt>
<dd></dd>
<dt><code>cos</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd></dd>
<dt><code>sin</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd></dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="Hi.Geom.Mat4d.html">Mat4d</a></dt>
<dd></dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_GetCosSinTermRotationMat4d_" data-uid="Hi.Geom.Solvers.SolverUtil.GetCosSinTermRotationMat4d*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_GetCosSinTermRotationMat4d_Hi_Geom_Vec3d_System_Double_System_Double_Hi_Geom_Vec3d_" data-uid="Hi.Geom.Solvers.SolverUtil.GetCosSinTermRotationMat4d(Hi.Geom.Vec3d,System.Double,System.Double,Hi.Geom.Vec3d)">
GetCosSinTermRotationMat4d(Vec3d, double, double, Vec3d)
</h3>
<div class="markdown level1 summary"></div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static Mat4d GetCosSinTermRotationMat4d(Vec3d axis, double cos, double sin, Vec3d pivot)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>axis</code> <a class="xref" href="Hi.Geom.Vec3d.html">Vec3d</a></dt>
<dd></dd>
<dt><code>cos</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd></dd>
<dt><code>sin</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd></dd>
<dt><code>pivot</code> <a class="xref" href="Hi.Geom.Vec3d.html">Vec3d</a></dt>
<dd></dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="Hi.Geom.Mat4d.html">Mat4d</a></dt>
<dd></dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_GetJacobMat_" data-uid="Hi.Geom.Solvers.SolverUtil.GetJacobMat*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_GetJacobMat_System_Func_System_Double___System_Double____System_Double___System_Double___System_Int32_" data-uid="Hi.Geom.Solvers.SolverUtil.GetJacobMat(System.Func{System.Double[],System.Double[]},System.Double[],System.Double[],System.Int32)">
GetJacobMat(Func&lt;double[], double[]&gt;, double[], double[], int)
</h3>
<div class="markdown level1 summary"><p>Calculates the Jacobian matrix for a function.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static double[,] GetJacobMat(Func&lt;double[], double[]&gt; func, double[] paras, double[] dparas, int targetNum)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>The function to evaluate.</p>
</dd>
<dt><code>paras</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter values.</p>
</dd>
<dt><code>dparas</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter delta values.</p>
</dd>
<dt><code>targetNum</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>The number of target values.</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[,]</dt>
<dd><p>The Jacobian matrix.</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_GetParasCompensation_" data-uid="Hi.Geom.Solvers.SolverUtil.GetParasCompensation*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_GetParasCompensation_System_Func_System_Double___System_Double____System_Double___System_Double___System_Double___System_Double_0__0____" data-uid="Hi.Geom.Solvers.SolverUtil.GetParasCompensation(System.Func{System.Double[],System.Double[]},System.Double[],System.Double[],System.Double[],System.Double[0:,0:]@)">
GetParasCompensation(Func&lt;double[], double[]&gt;, double[], double[], double[], out double[,])
</h3>
<div class="markdown level1 summary"><p>Gets parameter compensation values based on the function, current parameters, parameter deltas, and target values.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static double[] GetParasCompensation(Func&lt;double[], double[]&gt; func, double[] paras, double[] dparas, double[] targets, out double[,] jacob)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>The function to evaluate.</p>
</dd>
<dt><code>paras</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The current parameter values.</p>
</dd>
<dt><code>dparas</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter delta values.</p>
</dd>
<dt><code>targets</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The target values.</p>
</dd>
<dt><code>jacob</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[,]</dt>
<dd><p>The output Jacobian matrix.</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter compensation values.</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_GetParasCompensation_" data-uid="Hi.Geom.Solvers.SolverUtil.GetParasCompensation*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_GetParasCompensation_System_Func_System_Double___System_Double____System_Double___System_Double___System_Double___System_Double___System_Double_0__0____" data-uid="Hi.Geom.Solvers.SolverUtil.GetParasCompensation(System.Func{System.Double[],System.Double[]},System.Double[],System.Double[],System.Double[],System.Double[],System.Double[0:,0:]@)">
GetParasCompensation(Func&lt;double[], double[]&gt;, double[], double[], double[], double[], out double[,])
</h3>
<div class="markdown level1 summary"><p>Gets parameter compensation values based on the function, current parameters, parameter deltas, target values, and biases.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static double[] GetParasCompensation(Func&lt;double[], double[]&gt; func, double[] paras, double[] dparas, double[] targets, double[] biases, out double[,] jacob)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>The function to evaluate.</p>
</dd>
<dt><code>paras</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The current parameter values.</p>
</dd>
<dt><code>dparas</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter delta values.</p>
</dd>
<dt><code>targets</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The target values.</p>
</dd>
<dt><code>biases</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The bias values.</p>
</dd>
<dt><code>jacob</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[,]</dt>
<dd><p>The output Jacobian matrix.</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter compensation values.</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_GetParasCompensations_" data-uid="Hi.Geom.Solvers.SolverUtil.GetParasCompensations*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_GetParasCompensations_System_Func_System_Double___System_Double____System_Double___System_Double___System_Int32_System_Double___System_Double_0__0____" data-uid="Hi.Geom.Solvers.SolverUtil.GetParasCompensations(System.Func{System.Double[],System.Double[]},System.Double[],System.Double[],System.Int32,System.Double[],System.Double[0:,0:]@)">
GetParasCompensations(Func&lt;double[], double[]&gt;, double[], double[], int, double[], out double[,])
</h3>
<div class="markdown level1 summary"><p>Gets multiple parameter compensation values for a function.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static List&lt;double[]&gt; GetParasCompensations(Func&lt;double[], double[]&gt; func, double[] paras, double[] dparas, int outputNum, double[] biases, out double[,] jacob)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>The function to evaluate.</p>
</dd>
<dt><code>paras</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter values.</p>
</dd>
<dt><code>dparas</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The parameter delta values.</p>
</dd>
<dt><code>outputNum</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>The number of output values.</p>
</dd>
<dt><code>biases</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>The bias values.</p>
</dd>
<dt><code>jacob</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[,]</dt>
<dd><p>The output Jacobian matrix.</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.list-1">List</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>A list of parameter compensation values.</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_Solve_" data-uid="Hi.Geom.Solvers.SolverUtil.Solve*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_Solve_System_Func_System_Double_System_Double__System_Double_System_Double_System_Double_System_Double_System_Int32_" data-uid="Hi.Geom.Solvers.SolverUtil.Solve(System.Func{System.Double,System.Double},System.Double,System.Double,System.Double,System.Double,System.Int32)">
Solve(Func&lt;double, double&gt;, double, double, double, double, int)
</h3>
<div class="markdown level1 summary"><p>Solves a one-dimensional function for a target value.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static IEnumerable&lt;SolvingResult&gt; Solve(Func&lt;double, double&gt; func, double para, double dpara, double target, double convergenceLimit, int maxIteration = 12)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>, <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>&gt;</dt>
<dd><p>The function to solve</p>
</dd>
<dt><code>para</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd><p>Initial parameter value</p>
</dd>
<dt><code>dpara</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd><p>Parameter step size for calculating derivatives</p>
</dd>
<dt><code>target</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd><p>Target value to solve for</p>
</dd>
<dt><code>convergenceLimit</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd><p>Convergence limit (acceptable error)</p>
</dd>
<dt><code>maxIteration</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>Maximum number of iterations</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;<a class="xref" href="Hi.Geom.Solvers.SolvingResult.html">SolvingResult</a>&gt;</dt>
<dd><p>A sequence of solving result objects showing the progress of the solution</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_SolveArray_" data-uid="Hi.Geom.Solvers.SolverUtil.SolveArray*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_SolveArray_System_Func_System_Double___System_Double____System_Double___System_Double___System_Double___System_Func_System_Double___System_Double__System_Double_System_Int32_" data-uid="Hi.Geom.Solvers.SolverUtil.SolveArray(System.Func{System.Double[],System.Double[]},System.Double[],System.Double[],System.Double[],System.Func{System.Double[],System.Double},System.Double,System.Int32)">
SolveArray(Func&lt;double[], double[]&gt;, double[], double[], double[], Func&lt;double[], double&gt;, double, int)
</h3>
<div class="markdown level1 summary"><p>Solves a multi-dimensional function for specified target values with a custom convergence function.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static IEnumerable&lt;SolvingResult&gt; SolveArray(Func&lt;double[], double[]&gt; func, double[] paras, double[] dparas, double[] targets, Func&lt;double[], double&gt; convergenceFunc, double convergenceLimit, int maxIteration = 12)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>The function to solve</p>
</dd>
<dt><code>paras</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>Initial parameter values</p>
</dd>
<dt><code>dparas</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>Parameter step sizes for calculating derivatives</p>
</dd>
<dt><code>targets</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>Target values to solve for</p>
</dd>
<dt><code>convergenceFunc</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>&gt;</dt>
<dd><p>Function to calculate convergence from biases</p>
</dd>
<dt><code>convergenceLimit</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd><p>Convergence limit (acceptable error)</p>
</dd>
<dt><code>maxIteration</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>Maximum number of iterations</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;<a class="xref" href="Hi.Geom.Solvers.SolvingResult.html">SolvingResult</a>&gt;</dt>
<dd><p>A sequence of solving result objects showing the progress of the solution</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_SolveArray_" data-uid="Hi.Geom.Solvers.SolverUtil.SolveArray*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_SolveArray_System_Func_System_Double___System_Double____System_Double___System_Double___System_Int32_System_Double_System_Int32_" data-uid="Hi.Geom.Solvers.SolverUtil.SolveArray(System.Func{System.Double[],System.Double[]},System.Double[],System.Double[],System.Int32,System.Double,System.Int32)">
SolveArray(Func&lt;double[], double[]&gt;, double[], double[], int, double, int)
</h3>
<div class="markdown level1 summary"><p>Solves a multi-dimensional function with default convergence function.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static IEnumerable&lt;SolvingResult&gt; SolveArray(Func&lt;double[], double[]&gt; func, double[] paras, double[] dparas, int funcDstNum, double convergenceLimit, int maxIteration = 12)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>The function to solve</p>
</dd>
<dt><code>paras</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>Initial parameter values</p>
</dd>
<dt><code>dparas</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>Parameter step sizes for calculating derivatives</p>
</dd>
<dt><code>funcDstNum</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>Number of output values from the function</p>
</dd>
<dt><code>convergenceLimit</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd><p>Convergence limit (acceptable error)</p>
</dd>
<dt><code>maxIteration</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>Maximum number of iterations</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;<a class="xref" href="Hi.Geom.Solvers.SolvingResult.html">SolvingResult</a>&gt;</dt>
<dd><p>A sequence of solving result objects showing the progress of the solution</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_SolveArray_" data-uid="Hi.Geom.Solvers.SolverUtil.SolveArray*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_SolveArray_System_Func_System_Double___System_Double____System_Double___System_Double___System_Int32_System_Func_System_Double___System_Double__System_Double_System_Int32_" data-uid="Hi.Geom.Solvers.SolverUtil.SolveArray(System.Func{System.Double[],System.Double[]},System.Double[],System.Double[],System.Int32,System.Func{System.Double[],System.Double},System.Double,System.Int32)">
SolveArray(Func&lt;double[], double[]&gt;, double[], double[], int, Func&lt;double[], double&gt;, double, int)
</h3>
<div class="markdown level1 summary"><p>Solves a multi-dimensional function with a specified convergence function.</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static IEnumerable&lt;SolvingResult&gt; SolveArray(Func&lt;double[], double[]&gt; func, double[] paras, double[] dparas, int funcDstNum, Func&lt;double[], double&gt; convergenceFunc, double convergenceLimit, int maxIteration = 12)</code></pre>
</div>
<h4 class="section">Parameters</h4>
<dl class="parameters">
<dt><code>func</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]&gt;</dt>
<dd><p>The function to solve</p>
</dd>
<dt><code>paras</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>Initial parameter values</p>
</dd>
<dt><code>dparas</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[]</dt>
<dd><p>Parameter step sizes for calculating derivatives</p>
</dd>
<dt><code>funcDstNum</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>Number of output values from the function</p>
</dd>
<dt><code>convergenceFunc</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.func-2">Func</a>&lt;<a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>[], <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a>&gt;</dt>
<dd><p>Function to calculate convergence from biases</p>
</dd>
<dt><code>convergenceLimit</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.double">double</a></dt>
<dd><p>Convergence limit (acceptable error)</p>
</dd>
<dt><code>maxIteration</code> <a class="xref" href="https://learn.microsoft.com/dotnet/api/system.int32">int</a></dt>
<dd><p>Maximum number of iterations</p>
</dd>
</dl>
<h4 class="section">Returns</h4>
<dl class="parameters">
<dt><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.collections.generic.ienumerable-1">IEnumerable</a>&lt;<a class="xref" href="Hi.Geom.Solvers.SolvingResult.html">SolvingResult</a>&gt;</dt>
<dd><p>A sequence of solving result objects showing the progress of the solution</p>
</dd>
</dl>
<a id="Hi_Geom_Solvers_SolverUtil_Test_" data-uid="Hi.Geom.Solvers.SolverUtil.Test*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_Test" data-uid="Hi.Geom.Solvers.SolverUtil.Test">
Test()
</h3>
<div class="markdown level1 summary"><p>Internal Use Only</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static void Test()</code></pre>
</div>
<a id="Hi_Geom_Solvers_SolverUtil_Test2_" data-uid="Hi.Geom.Solvers.SolverUtil.Test2*"></a>
<h3 id="Hi_Geom_Solvers_SolverUtil_Test2" data-uid="Hi.Geom.Solvers.SolverUtil.Test2">
Test2()
</h3>
<div class="markdown level1 summary"><p>Internal Use Only</p>
</div>
<div class="markdown level1 conceptual"></div>
<div class="codewrapper">
<pre><code class="lang-csharp hljs">public static void Test2()</code></pre>
</div>
</article>
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