Function

# vDSP_maxmgv(_:_:_:_:)

Calculates the maximum magnitude in a single-precision vector.

## Parameters

`__A`

Single-precision real input vector.

`__I`

Stride for `A`.

`__C`

Output scalar.

`__N`

The number of elements to process. If `N` is zero (`0`), this function returns `-INFINITY`.

## Discussion

This function calculates the maximum magnitude of the first `N` elements of `A` and writes the result to `C`:

The operation is:

The following code shows an example of using `vDSP_maxmgv(_:_:_:_:)`:

### Maximum Calculation

`static func maximum<U>(U) -> Double`

Returns the maximum element in a double-precision vector.

`static func maximum<U>(U) -> Float`

Returns the maximum element in a single-precision vector.

`static func maximumMagnitude<U>(U) -> Double`

Returns the maximum magnitude element in a double-precision vector.

`static func maximumMagnitude<U>(U) -> Float`

Returns the maximum magnitude element in a single-precision vector.

`static func indexOfMaximum<U>(U) -> (UInt, Double)`

Returns the maximum element, and its index, in a double-precision vector.

`static func indexOfMaximum<U>(U) -> (UInt, Float)`

Returns the maximum element, and its index, in a signal-precision vector.

`static func indexOfMaximumMagnitude<U>(U) -> (UInt, Double)`

Returns the maximum magnitude element, and its index, in a double-precision vector.

`static func indexOfMaximumMagnitude<U>(U) -> (UInt, Float)`

Returns the maximum magnitude element, and its index, in a single-precision vector.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.