Contents

multiply(_:_:)

Returns the single-precision element-wise product of a vector and a scalar value.

Declaration

static func multiply<U>(_ scalar: Float, _ vector: U) -> [Float] where U : AccelerateBuffer, U.Element == Float

Parameters

  • scalar:

    The input scalar value, B.

  • vector:

    The input vector, A.

Mentioned in

Return Value

The output vector, C.

Discussion

This function calculates the element-wise product of vector A and scalar value B, and writes the result to vector C.

 for (n = 0; n < N; ++n)
    C[n] = A[n] * B;

[Image]

The following code shows an example of using this function:

    let a: [Float] = [1, 2, 3, 4, 5]
    let b: Float = 10
    
    let c = vDSP.multiply(b, a)
    
    // Prints "[10.0, 20.0, 30.0, 40.0, 50.0]".
    print(c)

See Also

Multiplication