32 lines
532 B
C
32 lines
532 B
C
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#include <math.h>
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#define EPS 1.0e-6
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#define JMAX 14
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#define JMAXP (JMAX+1)
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#define K 5
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float qromo(func,a,b,choose)
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float (*choose)(),(*func)(),a,b;
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{
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void polint();
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void nrerror();
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int j;
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float ss,dss,h[JMAXP+1],s[JMAXP];
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h[1]=1.0;
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for (j=1;j<=JMAX;j++) {
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s[j]=(*choose)(func,a,b,j);
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if (j >= K) {
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polint(&h[j-K],&s[j-K],K,0.0,&ss,&dss);
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if (fabs(dss) <= EPS*fabs(ss)) return ss;
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}
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h[j+1]=h[j]/9.0;
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}
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nrerror("Too many steps in routing qromo");
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return 0.0;
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}
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#undef EPS
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#undef JMAX
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#undef JMAXP
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#undef K
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