Contents of Example

Example

> acos(1)
        0
> acos(0)
     1.57
> acos(-1)
     3.14
> acos(0.707+ 0.707j)
    0.999 - 0.764i
> c=0+1j
 c =
        0 + 1i
> acos(c)
     1.57 - 0.881i
> B = [ 0, -0.5 ; -0.3+1j, 0.4-0.003j]
 B =
                  0 + 0i               -0.5 + 0i
               -0.3 + 1i            0.4 - 0.003i
> acos(B)
               1.57 + 0i               2.09 + 0i
           1.78 - 0.897i         1.16 + 0.00327i

See also: Page $[*]$ acosh(), Page $[*]$ asin(), Page $[*]$ atan(), Page $[*]$ atan2(), Page $[*]$ cos().