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Div2D

LabWindows/CVI

Div2D

AnalysisLibErrType Div2D (void *arrayX, void *arrayY, ssize_t numberOfRows, ssize_t numberOfColumns, void *outputArray);

Purpose

Divides two 2D arrays, element by element. Div2D obtains the (i, j)th element of the output array using the following formula:

Div2D can perform the operation in place; that is, the input and output arrays can be the same.

The following example uses the Div2D function.

double arrayX[10][10], arrayY[10][10], outputArray[10][10];
int i, j, numRows, numCols;
AnalysisLibErrType status;

numRows = 10;
numCols = 10;

/* Use a For loop to generate two 2D arrays of random numbers between 0.0 and 1.0 */
for (j = 0; j < 10; j++)

for (i = 0; i < 10; i++)
{

arrayX[i][j] = Random(0.0, 1.0);
arrayY[i][j] = Random(0.0, 1.0);

}

status = Div2D(arrayX, arrayY, numRows, numCols, outputArray);

Parameters

Input
Name Type Description
arrayX void * The dividend array of the array division operation. This array must be an array of doubles.
arrayY void * The divisor array of the array division operation. This array must be an array of doubles.
numberOfRows ssize_t Number of rows used in the array division operation.
numberOfColumns ssize_t Number of columns used in the array division operation.
Output
Name Type Description
outputArray void * Result array, which is an array of doubles.

Return Value

Name Type Description
status AnalysisLibErrType A value that specifies the type of error that occurred. Refer to analysis.h for definitions of these constants.

Additional Information

Library: Analysis Library

Include file: analysis.h

LabWindows/CVI compatibility: LabWindows/CVI 3.0 and later