另一款电路设计软件

				/**********				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"								/*				 * PowDeriv computes the partial derivatives of the x^^m				 * function where the argument to the function is itself a				 * function of three variables p, q, and r. m is a constant.				 */								void 				PowDeriv(new, old, emm)				Dderivs *new, *old;				double emm;								{				Dderivs temp;								EqualDeriv(&temp, old);								new->value = pow(temp.value, emm);				new->d1_p = emm*new->value/temp.value*temp.d1_p;				new->d1_q = emm*new->value/temp.value*temp.d1_q;				new->d1_r = emm*new->value/temp.value*temp.d1_r;				new->d2_p2 = emm*new->value/temp.value*((emm-1)/temp.value*temp.d1_p*temp.d1_p + temp.d2_p2);				new->d2_q2 = emm*new->value/temp.value*((emm-1)/temp.value*temp.d1_q*temp.d1_q + temp.d2_q2);				new->d2_r2 = emm*new->value/temp.value*((emm-1)/temp.value*temp.d1_r*temp.d1_r + temp.d2_r2);				new->d2_pq = emm*new->value/temp.value*((emm-1)/temp.value*temp.d1_p*temp.d1_q + temp.d2_pq);				new->d2_qr = emm*new->value/temp.value*((emm-1)/temp.value*temp.d1_q*temp.d1_r + temp.d2_qr);				new->d2_pr = emm*new->value/temp.value*((emm-1)/temp.value*temp.d1_p*temp.d1_r + temp.d2_pr);				new->d3_p3 = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_p*						temp.d1_p*temp.d1_p + temp.d1_p*temp.d2_p2 + temp.d1_p*temp.d2_p2 + temp.d1_p						*temp.d2_p2) + emm*new->value/temp.value*temp.d3_p3;				new->d3_q3 = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_q*						temp.d1_q*temp.d1_q + temp.d1_q*temp.d2_q2 + temp.d1_q*temp.d2_q2 + temp.d1_q						*temp.d2_q2) + emm*new->value/temp.value*temp.d3_q3;				new->d3_r3 = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_r*						temp.d1_r*temp.d1_r + temp.d1_r*temp.d2_r2 + temp.d1_r*temp.d2_r2 + temp.d1_r						*temp.d2_r2) + emm*new->value/temp.value*temp.d3_r3;				new->d3_p2r = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_p*						temp.d1_p*temp.d1_r + temp.d1_p*temp.d2_pr + temp.d1_p*temp.d2_pr + temp.d1_r						*temp.d2_p2) + emm*new->value/temp.value*temp.d3_p2r;				new->d3_p2q = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_p*						temp.d1_p*temp.d1_q + temp.d1_p*temp.d2_pq + temp.d1_p*temp.d2_pq + temp.d1_q						*temp.d2_p2) + emm*new->value/temp.value*temp.d3_p2q;				new->d3_q2r = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_q*						temp.d1_q*temp.d1_r + temp.d1_q*temp.d2_qr + temp.d1_q*temp.d2_qr + temp.d1_r						*temp.d2_q2) + emm*new->value/temp.value*temp.d3_q2r;				new->d3_pq2 = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_q*						temp.d1_q*temp.d1_p + temp.d1_q*temp.d2_pq + temp.d1_q*temp.d2_pq + temp.d1_p						*temp.d2_q2) + emm*new->value/temp.value*temp.d3_pq2;				new->d3_pr2 = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_r*						temp.d1_r*temp.d1_p + temp.d1_r*temp.d2_pr + temp.d1_r*temp.d2_pr + temp.d1_p						*temp.d2_r2) + emm*new->value/temp.value*temp.d3_pr2;				new->d3_qr2 = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_r*						temp.d1_r*temp.d1_q + temp.d1_r*temp.d2_qr + temp.d1_r*temp.d2_qr + temp.d1_q						*temp.d2_r2) + emm*new->value/temp.value*temp.d3_qr2;				new->d3_pqr = emm*(emm-1)*new->value/(temp.value*temp.value)*((emm-2)/temp.value*temp.d1_p*						temp.d1_q*temp.d1_r + temp.d1_p*temp.d2_qr + temp.d1_q*temp.d2_pr + temp.d1_r						*temp.d2_pq) + emm*new->value/temp.value*temp.d3_pqr;						}