23 lines
393 B
C
23 lines
393 B
C
/*
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cproj.c
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Contributed by Danny Smith
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2003-10-20
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*/
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#include <math.h>
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#include <complex.h>
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/* Return the value of the projection onto the Riemann sphere.*/
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double complex cproj (double complex Z)
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{
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complex double Res = Z;
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if (isinf (__real__ Z) || isinf (__imag__ Z))
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{
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__real__ Res = HUGE_VAL;
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__imag__ Res = copysign (0.0, __imag__ Z);
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}
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return Res;
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}
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