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cexp, cexpf, cexpl - complex exponential function
double complex cexp(double complex z);
float complex cexpf(float complex z);
long double complex cexpl(long double complex z);
Link with -lm.
The function calculates e (2.71828..., the base of natural logarithms)
raised to the power of z.
cexp(I * z) = ccos(z) + I * csin(z)
cabs(3), clog(3), cpow(3), complex(7)
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