Artifact 2920b2304041909cec1e5801a3ef42d69bb8666e1258d01e317ef58eaa454d63:

• Executable file mtt/lib/cr/hh/squarelaw.hh — part of check-in [af3953deae] at 2021-03-01 11:39:42 on branch master — Cleanup repository after cvs2git conversion. (user: jeff@gridfinity.com, size: 525) [annotate] [blame] [check-ins using] [more...]
• Executable file mttroot/mtt/lib/cr/hh/squarelaw.hh — part of check-in [ef84c3718b] at 2004-08-29 17:28:42 on branch origin/master — include causality.hh to define effort, flow and state. (user: geraint@users.sourceforge.net, size: 525) [annotate] [blame] [check-ins using]

#ifndef SQUARELAW_HH
#define SQUARELAW_HH

#include <cmath
#include "sign.hh"

#include "causality.hh"

inline double squarelaw(const double gain,
			const causality_t causality, const int port,
			const double input, const causality_t in_causality, const int in_port)
  /*
   * implements P = R Q^2
   * direction of flow is retained
   */
{
  if (causality == effort) {
    return pow(input, 2) * gain * sign(input * gain);
  } else {
    return sqrt(fabs(input / gain)) * sign(input / gain);
  }
}

#endif // SQUARELAE_HH