can you please tell me how to remove any special characters from a string in MATLAB?

special characters include anything else from alphabets(a-z) and(A-Z)

Answer 1

[Stalin Samuel]

%for  example
s='matlab@123'
s(isletter(s)==0)=[];

[tina jain]

I want to remove special characters.This is not what I want

[Walter Roberson]

It is what you defined. isletter() is true only for a-z and A-Z . If you want to leave digits alone then you need to define digits as being not "special characters"