MATLAB Programming

Characters and Strings
Converting from a Numeric String
Use str2num to convert a character array to the numeric value represented by
that string:
str = '37.294e-1';
val = str2num(str)
val =
3.7294
The str2double function converts a cell array of strings to the
double-precision values represented by the strings:
c = {'37.294e-1'; '-58.375'; '13.796'};
d = str2double(c)
d =
3.7294
-58.3750
13.7960
whos
Name Size Bytes Class
c 3x1 224 cell
d 3x1 24 double
Converting from a Specific Radix
To convert from a character representation of a nondecimal number to the
value of that number, use one of these functions: hex2num, hex2dec, bin2dec,
or base2dec.
The hex2num and hex2dec functions both take hexadecimal (base 16) inputs,
but hex2num returns the IEEE double-precision floating-point number it
represents, while hex2dec converts to a decimal integer.
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