Resistor mesh: Difference between revisions

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 {{works with|Mathematica|8.0}}
+<break>
-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 nodes in an <em>m</em> by <em>n</em> grid to the desired precision.
 <lang mathematica>resistanceGraph[g_, prec_:$MachinePrecision]:=
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 {{works with|Mathematica|9.0}}
 Alternative implementation using <b>GridGraph</b>.
+<break>
 <lang mathematica>graphresistor[g_, a_, b_] :=
   LinearSolve[