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

Group: Mathematical Functions
Topic: Trigonometric Functions
See also: acos acosh asin asinh atan atan2 atanh cos cosh sin sinh tanh

Function: tan
Description: Returns the tangent in radian of the elements of an array.

Usage: z = tan (x)
Input:
x array
Output:
z array

Note:

Example:
x = #(pi/3, pi/4)~#(pi, 3/4*pi)
tan(x)
setenv("outputformat","%8.5f")
tan(x)
setenv("outputformat","%8.5lg")

Result:
Contents of tan

[1,]   1.7321 -1.2251e-16
[2,]        1       -1
Contents of tan

[1,]  1.73205  0.00000
[2,]  1.00000 -1.00000



(C) MD*TECH Method and Data Technologies, 05.02.2006