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vDSP_maxmgvi

Calculates the maximum magnitude and corresponding index in a single-precision vector.

Declaration

extern void vDSP_maxmgvi(const float *__A, vDSP_Stride __IA, float *__C, vDSP_Length *__I, vDSP_Length __N);

Parameters

  • __A:

    The input vector, A.

  • __IA:

    The distance between the elements in the input vector.

  • __C:

    The output scalar value, C. If N is zero, the function sets C to 0.

  • __I:

    The output scalar value, I. If N is zero, the function sets I to 0.

  • __N:

    The number of elements that the function processes.

Discussion

This function calculates the maximum magnitude and its corresponding index of the first N elements of the input vector and writes the results to the output scalar parameters, C and I, respectively.

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The following code shows an example of using this function:

See Also

Calculating the index of the maximum value of a vector