Keywords - Function groups - @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Library: math
See also: ccos ccosh cexp csin csinh ctan ctanh csqrt

Quantlet: cln
Description: Complex natural logarithm

Usage: z = cln (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

Example:
library("math")
j = complex(0, 1)
cln(j)

Result:
Contents of z.re
[1,]        0
Contents of z.im
[1,]   1.5708



Author: S. Klinke, 19970529
(C) MD*TECH Method and Data Technologies, 05.02.2006