// ChanHH.cxx#include "ChanHH.h"#include <math.h>void ChanHH::Step( const real dt ){	// First, update the gating variables.	// Then conductance G can be computed directly.	if (Mexp) UpdateM( dt );	if (Hexp) UpdateH( dt );		// Note: for efficiency, we could restrict the exponents to	// integers, do a "case" here, and multiply them out the long way...		G = MaxG * pow(M,Mexp) * pow(H,Hexp);}
