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c09263744b869b92e03fc5c956a18178b089d655 blob 166 bytes (raw)

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#include "libm.h"

/* tan(z) = -i tanh(i z) */

double complex ctan(double complex z)
{
	z = ctanh(CMPLX(-cimag(z), creal(z)));
	return CMPLX(cimag(z), -creal(z));
}
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solving c0926374 ...
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