Page 89 - Basics of MATLAB and Beyond

>> strrep(str,’go’,’am’)
ans =
Iamnow
The replacement text need not be the same length as the text it is
replacing:
>> strrep(str,’go’,’eat snails’)
ans =
I eat snails now

And the text to be replaced can occur more than once:
>> strrep(str,’o’,’e’)
ans =
Igenew
To delete characters from a string, replace them with an empty string
’’ or []:

>> strrep(str,’o’,’’)
ans =
Ignw

26.4 Converting Numbers to Strings

The functions num2str and int2str are useful for general purpose con-
version of numbers to strings. The latter is for integers:

>> for i = 1:3
disp([’Doing loop number ’ int2str(i) ’ of 3’])
end
Doing loop number 1 of 3
Doing loop number 2 of 3
Doing loop number 3of 3

And num2str is for everything else:
>> for i = 1:3
disp([’Case ’ int2str(i) ’, sin = ’ num2str(sqrt(i))])
end
Case 1, sin = 1
Case 2, sin = 1.4142
Case 3, sin = 1.7321
The inputs can be vectors or matrices:

c 2000 by CRC Press LLC