Function acos #

Calculate the inverse cosine of a value.

For matrices, the function is evaluated element wise.

Syntax #

math.acos(x)

Parameters #

Parameter Type Description
x number | BigNumber | Complex | Array | Matrix Function input

Returns #

Type Description
number | BigNumber | Complex | Array | Matrix The arc cosine of x

Examples #

math.acos(0.5);           // returns number 1.0471975511965979
math.acos(math.cos(1.5)); // returns number 1.5

math.acos(2);             // returns Complex 0 + 1.3169578969248166 i

See also #

cos, atan, asin

Fork me on GitHub