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4 Using MWArra y Classes

Example — Getting the Maximum Number of Nonzeros in an

MWArray

Display the maximum number of nonzeros for this array:

System.out.println("Maximum number of nonzeros for matrix A is "

+ A.maximumNonZeros());

When run, the example displays this output:

Maximum number of nonzeros for matrix A is 10

numberOfNonZeros. This method returns the number of nonzero elements

in a sparse array. If the underlying array is nonsparse, this method returns

the same value as

numberOfElements.

The prototype for the

numberOfNonZeros method is as follows:

public int numberOfNonZeros()

Input Parameters.

None

Example — Getting the Number of Nonzeros in an MWArray

Display the number of nonzero values in this array:

System.out.println("The number of nonzeros for matrix A is " +

A.numberOfNonZeros());

When run, the example displays this output:

The number of nonzeros for matrix A is 5

Using MWNumericArray

This section cov ers the following topics:

• “Constructing an MWNumericArray” on page 4-59

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MATLAB BUILDER JA 2 Guida Utente Pagina 134