| Library: | math |
| See also: | ccosh cexp cln csin csinh ctan ctanh csqrt |
| Quantlet: | ccos | |
| Description: | Complex cosine |
| Usage: | z = ccos(x) | |
| Input: | ||
| x | n x p x d1 x ... x dn complex array | |
| Output: | ||
| z | n x p x d1 x ... x dn complex array | |
library("math")
z = complex(0, 3.1415/2)
ccos(z)
Contents of z.re [1,] 2.5091 Contents of z.im [1,] 0