| Group: | Mathematical Functions |
| Topic: | Trigonometric Functions |
| See also: | acos asin asinh atan atan2 atanh cos cosh sin sinh tan tanh |
| Function: | acosh | |
| Description: | Returns the inverse hyperbolic cosine of the elements of an array. |
| Usage: | z = acosh (x) | |
| Input: | ||
| x | array | |
| Output: | ||
| z | array | |
x = #(1, 1/2)~#(cosh(2), 100) acosh(x)
Content of acosh [1,] 0 2 [2,] +NAN 5.2983