Base 2 logarithm and dissect floating-point numbers into exponent and mantissa

C Prototype

mxArray *mlfLog2(mxArray **E, mxArray *X);

C Syntax

#include "matlab.h"

mxArray *X;            /* Required input argument(s) */
mxArray *E = NULL;     /* Optional output argument(s) */
mxArray *Y = NULL, *F = NULL;/* Return value */

mlfAssign(&Y, mlfLog2(NULL,X));
mlfAssign(&F, mlfLog2(&E,X));

MATLAB Syntax

Y = log2(X)
[F,E] = log2(X)

See Also

MATLAB log2     Calling Conventions