MATLAB®

mxGetInf (C and Fortran) - Get value of infinity

C Syntax

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

Fortran Syntax

real*8 mxGetInf

Returns

The value of infinity on your system.

Description

Call mxGetInf to return the value of the MATLAB internal inf variable. inf is a permanent variable representing IEEE^® arithmetic positive infinity. The value of inf is built into the system; you cannot modify it.

Operations that return infinity include

• Division by 0. For example, 5/0 returns infinity.

• Operations resulting in overflow. For example, exp(10000) returns infinity because the result is too large to be represented on your machine.

C Examples

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

See Also

mxGetEps, mxGetNaN

mxGetImagData (C and Fortran)

mxGetIr (C and Fortran)