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2025-09-12 18:55:25 +09:00

11 lines
226 B
C

double ratval(double x, double cof[], int mm, int kk)
{
int j;
double sumd,sumn;
for (sumn=cof[mm],j=mm-1;j>=0;j--) sumn=sumn*x+cof[j];
for (sumd=0.0,j=mm+kk;j>=mm+1;j--) sumd=(sumd+cof[j])*x;
return sumn/(1.0+sumd);
}