oplinfunc.html - Synthesize OpAmp circuits from user-specified linear functions
  Copyright (C) 2010  Claire Xenia Wolf <claire@clairexen.net>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

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  Usage: Enter a simple linear function in the f() input field and click the
  "Solve!" button. The Nneg and Npos parameters can be used to normalize the
  positive and negative resistor network. The Nneg and Npos parameters can
  also be set to values such as "1/0.14706" or "1/GND".
f()= Nneg=  Npos=