str2num (MATLAB Function Reference)

String to number conversion

Syntax

x = str2num('str')

Description

x = str2num('str') converts the string str, which is an ASCII character representation of a numeric value, to MATLAB's numeric representation. The string can contain:

Digits
A decimal point
A leading + or - sign
A letter e preceding a power of 10 scale factor
A letter i indicating a complex or imaginary number.

The str2num function can also convert string matrices.

Examples

str2num('3.14159e0') is approximately .

To convert a string matrix:

str2num(['1 2';'3 4'])

ans =

     1     2
     3     4

str2mat strcat