20 lines
329 B
C
20 lines
329 B
C
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/*
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clog.c
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Contributed by Danny Smith
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2003-10-20
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*/
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/* clog (x + I * y) = log (hypot (x, y)) + I * atan2 (y, x) */
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#include <math.h>
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#include <complex.h>
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double complex clog (double complex Z)
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{
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double complex Res;
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__real__ Res = log (_hypot (__real__ Z, __imag__ Z));
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__imag__ Res = carg (Z);
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return Res;
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}
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