Function

# vvacosf

Calculates the arccosine of each element in an array of single-precision values.

## Parameters

`parameter 1`

The output array, y.

`parameter 2`

The input array, x.

`parameter 3`

The number of elements in the arrays.

## Discussion

The calculated values are in the range `[0, pi]`.

If `x` is `1`, the result is `+0`.

If `|x| > 1`, the result is `NaN`.

### Array-Oriented Trigonometric Functions

`vvsin`

Calculates the sine of each element in an array of double-precision values.

`vvsinf`

Calculates the sine of each element in an array of single-precision values.

`vvsinpi`

Calculates the sine of pi multiplied by each element in an array of double-precision values.

`vvsinpif`

Calculates the sine of pi multiplied by each element in an array of single-precision values.

`vvcos`

Calculates the cosine of each element in an array of double-precision values.

`vvcosf`

Calculates the cosine of each element in an array of single-precision values.

`vvcospi`

Calculates the cosine of pi multiplied by each element in an array of double-precision values.

`vvcospif`

Calculates the cosine of pi multiplied by each element in an array of single-precision values.

`vvcosisin`

Calculates the cosine and sine of each element in an array of double-precision values.

`vvcosisinf`

Calculates the cosine and sine of each element in an array of single-precision values.

`vvsincos`

Calculates the cosine and sine of each element in an array of double-precision values.

`vvsincosf`

Calculates the cosine and sine of each element in an array of single-precision values.

`vvtan`

Calculates the tangent of each element in an array of double-precision values.

`vvtanf`

Calculates the tangent of each element in an array of single-precision values.

`vvtanpi`

Calculates the tangent of pi multiplied by each element in an array of double-precision values.

`vvtanpif`

Calculates the tangent of pi multiplied by each element in an array of single-precision values.

`vvasin`

Calculates the arcsine of each element in an array of double-precision values.

`vvasinf`

Calculates the arcsine of each element in an array of single-precision values.

`vvacos`

Calculates the arccosine of each element in an array of double-precision values.

`vvatan`

Calculates the arctangent of each element in an array of double-precision values.

`vvatanf`

Calculates the arctangent of each element in an array of single-precision values.

`vvatan2`

Calculates the arctangent of each pair of elements in two arrays of double-precision values.

`vvatan2f`

Calculates the arctangent of each pair of elements in two arrays of single-precision values.