± ± ± ± ± ± ± ± ± ± ±
- Imagine you need to subtract one number from another using MATLAB.
- You will not be using eval for this task.
- Given two ASCII strings representing two integers X and Y.
- Each of them has only 12 or less ASCII characters.
- Each of them represents signed integers, such as '+2345'
- Please output the result of (X-Y) in a similar style.
Solution Stats
Problem Comments
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6 Comments
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3 older comments
Mohamed Atyya
on 30 Oct 2017
good
nipun garg
on 8 Jun 2018
function z = mysub(x,y)
z = num2str( str2num(x) - str2num(y) );
end
why this is not working for this code?
Matt Offredi
on 8 Mar 2019
Nice
Mark Sanderson
on 14 Mar 2019
Hi. My code only prints out '-' for a negative number but not '+' for a positive. Can anyone help? function Z = mysub(X,Y); W = (str2num(X))-(str2num(Y)); Z = num2str(W); end
Rafael Siqueira Telles Vieira
on 2 Jul 2020 at 6:48
actually each of them has 14 characters or less...15 if we count the signs.
Rafael Siqueira Telles Vieira
on 2 Jul 2020 at 6:52
Mark Sanderson, if W > 0 Z = ['+' ...]
Solution Comments
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1 Comment
Maryam HCTRAK Yousef
on 28 Mar 2020
piece of cake
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1 Comment
wu
on 10 Oct 2018
+-=
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1 Comment
A C
on 31 Jul 2018
string to double and sprintf
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1 Comment
Giuseppe Ridinò
on 23 Nov 2017
Need to calculate the difference ... not the sum! :)
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1 Comment
Looky
on 24 Oct 2017
Sorry for this...just had to try regexp. Somehow, the size of this is calculated completly wrong.....
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