MATLAB BUILDER JA 2 Guía de usuario descargar pdf (Pagina 150)

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4 Using MWArra y Classes

Test x for infin ity:

double x = 1.0 / 0.0;

if (MWNumericArray.isInf(x))

System.out.println("The input value is infinite");

When run, the example displays this output:

The input value is infinite

isNaN. This method tests for NaN (Not a Number) in a machine-independent

manner. This is a static method of the class and does not need to be invoked

in reference to an instance of the class.

The prototype for the

isNaN method is

public static boolean isNaN(double value)

Input Parameters

value

double

value to test for NaN

Example — Testing for NaN Array Values

Test x for NaN:

double x = 0.0 / 0.0;

if (MWNumericArray.isNaN(x))

System.out.println("The input value is not a number.");

When run, the example displays this output:

The input value is not a number.

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