timesder.c

spice中支持多层次元件模型仿真的可单独运行的插件源码

/**********
Copyright 1990 Regents of the University of California.  All rights reserved.
Author: 1989 Jaijeet S. Roychowdhury
**********/

#include "spice.h"
#include "distodef.h"
#include "suffix.h"

/*
 * TimesDeriv computes the partial derivatives of the x*k
 * function where the argument to the function is itself a
 * function of three variables p, q, and r. k is a constant.
 */

void
TimesDeriv(new, old, k)
Dderivs *old, *new;
double k;
{

new->value = k* old->value;
new->d1_p = k*old->d1_p;
new->d1_q = k*old->d1_q;
new->d1_r = k*old->d1_r;
new->d2_p2 = k*old->d2_p2;
new->d2_q2 = k*old->d2_q2;
new->d2_r2 = k*old->d2_r2;
new->d2_pq = k*old->d2_pq;
new->d2_qr = k*old->d2_qr;
new->d2_pr = k*old->d2_pr;
new->d3_p3 = 
		k*old->d3_p3  
		;
new->d3_q3 = 
		k*old->d3_q3  
		;
new->d3_r3 = 
		k*old->d3_r3  
		;
new->d3_p2r = 
		k*old->d3_p2r  
		;
new->d3_p2q = 
		k*old->d3_p2q  
		;
new->d3_q2r = 
		k*old->d3_q2r  
		;
new->d3_pq2 = 
		k*old->d3_pq2  
		;
new->d3_pr2 = 
		k*old->d3_pr2  
		;
new->d3_qr2 = 
		k*old->d3_qr2  
		;
new->d3_pqr = 
		k*old->d3_pqr  
		;

}