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18 lines
280 B
C
18 lines
280 B
C
#include "f2c.h"
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#ifdef KR_headers
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extern double sin(), cos(), sinh(), cosh();
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VOID c_cos(r, z) complex *r, *z;
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#else
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#undef abs
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#include "math.h"
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void c_cos(complex *r, complex *z)
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#endif
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{
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double zr = z->r;
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r->r = cos(zr) * cosh(z->i);
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r->i = - sin(zr) * sinh(z->i);
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}
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