15 lines
222 B
C
15 lines
222 B
C
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#include <math.h>
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#define NRANSI
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#include "nrutil.h"
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float ellf(float phi, float ak)
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{
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float rf(float x, float y, float z);
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float s;
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s=sin(phi);
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return s*rf(SQR(cos(phi)),(1.0-s*ak)*(1.0+s*ak),1.0);
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}
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#undef NRANSI
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