MATLAB^®

mxGetNaN (C and Fortran) - Get value of `NaN` (Not-a-Number)

C Syntax

#include "matrix.h"
double mxGetNaN(void);

Fortran Syntax

real*8 mxGetNaN

Returns

The value of NaN (Not-a-Number) on your system

Description

Call mxGetNaN to return the value of NaN for your system. NaN is the IEEE arithmetic representation for Not-a-Number. Certain mathematical operations return NaN as a result, for example,

0.0/0.0
Inf-Inf

The value of Not-a-Number is built in to the system. You cannot modify it.

C Examples

See mxgetinf.c in the mx subdirectory of the examples directory.