# Check if a palindrome.

201 views (last 30 days)
Giuseppe on 2 Apr 2014
Edited: DGM on 8 Mar 2022
I have the script:
%1. Clear the memory and command window.
clear
clc
%2. Input a string.
string = input('What is your string: ', 's');
%3. Check if the string is a palindrome or not.
if string == fliplr(string);
disp (['The string, ' string ', is a palindrome.'])
else
disp (['The string, ' string ', is not a palindrome.'])
end
I want to make it so if the user enters anything but a word for the string it does not run and maybe instead of flipping the string comparing each cell. e.g if letter 1 is the same as the last letter, if letter 2 is the same as the second last letter. This method would be prefered. Also how would i make it so that that i could enter a cell array of striings and a vector of logical values was returned.

Image Analyst on 2 Apr 2014
Looks almost identical to a question I answered a few days ago http://www.mathworks.com/matlabcentral/answers/123671#answer_131334. You need to cast to lower case and remove spaces. You can use inputdlg() to ask the user for several strings at a time and get a cell array.

### More Answers (1)

RAGHAVENDRA NAIK on 8 Mar 2022
Edited: DGM on 8 Mar 2022
sum=0;
n=input('Tell me a number \n');
count=input('no. of digits\n')
x=n;
if (count>=2)
for i=1:n
if (n>0)
r=round(rem(n,10)-0.1);
sum=sum*10+r;
n=round((n/10)-0.1);
c=x-sum;
else
break
end
end
if (c==0)
disp('the no. is palindrome');
else
disp('the no. is not palindrome');
end
else
disp('the no. is not palindrome');
end

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