MATLAB: How can i collect number without using eval function

Question

I try to use int2str and num2str which didnot compute the problem. However, it computed ans = 51 43 50 If I give 3+2, it should compute 5 and show the screen which one can be defined ? What is something? Like example:

Number=input('Enter Number please:','s')
result=something(Number)

Answer 1

You can try something like this:

in = input('Please enter a number:','s'); 
s = strsplit(in,'+');  
result = sum(str2double(s));