Resistor mesh: Difference between revisions
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=={{header|Mathematica}}== |
=={{header|Mathematica}}== |
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Use <b>KirchhoffMatrix</b>, <b>PseudoInverse</b>, and <b>GridGraph</b> to compute the resistance between <em>any</em> two points. |
Use <b>KirchhoffMatrix</b>, <b>PseudoInverse</b>, and <b>GridGraph</b> to compute the resistance between <em>any</em> two points. |
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{{works |
{{works with|Mathematica|8.0}} |
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<lang mathematica> |
<lang mathematica> |
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resistanceGraph[g_, prec_:$MachinePrecision]:= |
resistanceGraph[g_, prec_:$MachinePrecision]:= |
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{{works with|Mathematica|9.0}} |
{{works with|Mathematica|9.0}} |
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Alternative implementation using <b>GridGraph</b>. |
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<lang mathematica>graphresistor[g_, a_, b_] := |
<lang mathematica>graphresistor[g_, a_, b_] := |
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LinearSolve[ |
LinearSolve[ |
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