MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn moreOpportunities for recent engineering grads.

Apply TodayFind the sum of all the numbers of the input vector x.

Examples:

Input x = [1 2 3 5] Output y is 11

Input x = [42 -1] Output y is 41

8974 correct solutions
3298 incorrect solutions

Last solution submitted on Jan 30, 2015

11 players like this problem

1 player likes this solution

4 Comments

Show
1 older comment

VIVEK RUHELA
on 14 Nov 2014

why y=sum(x) is wrong. Still I made the same function on MATLAB software and it runs and give correct answer. Can anybody tell me whats going on......

Tim
on 14 Nov 2014

The "y=" is missing from "y=sum(x)".

VIVEK RUHELA
on 15 Nov 2014

@Mr. Tim . Atleast You give me positive reply.Thanks a lot.Can I further talk to you regarding MATLAB CODY Guidence..

Tim
on 19 Nov 2014

Sure, ok.

1 Comment

Carlos Pavon
on 16 Jun 2014

Bien Javier

1 Comment

fert
on 22 Feb 2014

y = sum(x)
x=[1 2 3 5]
is not that true, i am confused.

1 Comment

Andrew Newell
on 7 Jun 2013

This solution is just for a laugh - the test suite is pretty weak!

1 Comment

greatordinary
on 3 Mar 2012

there is definitely something wrong with cody.I am getting 'Undefined function 'cody.verifyCode' for input arguments of type 'char'.' for my solution

1 Comment

Jeff
on 1 Feb 2012

Why isn't nansum(x) a solution?

1 player likes this solution

2 Comments

TAB
on 23 Jun 2012

Test for vactor
x = [1 4;3 4]
It will add columns only.

Ozan Gunaydin
on 22 Sep 2014

Problem is finding the sum of all numbers in an input vector, so the test set is correct.

4 Comments