902 B
902 B
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 |
Throws
Type | Description |
---|
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