Convert string to double precision value
X = str2double(str)str to a double-precision
value.
str contains text that represents a number. Text that represents
a number can contain:
Digits
A decimal point
A leading + or - sign
An e preceding a power of 10 scale factor
If str2double cannot convert text to a number, then it returns
a NaN value.
Use in Stateflow® charts that use C as the action language.
Enclose literal strings with single or double quotes.