# dot calculation

Hi, experts

I am kind of confuse about the syntax in matlab below
p ./ numel(I) --> there is a dot after p
p / numel(I) --> no dot after p

what is the difference between those two? I try couple different p matrix, but I don't see the different in answer.
###### Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Commented:
if there is dot between two like A./B then matlab divides the two matrices by their entries like A(i,j)/B(i,j)

if there is no dot between A/B  then matlab takes the inverse of B which is equivalent to A*inv(B)

Regards,
0
Commented:
Example;

A=[10 12;6 3]

A =

10    12
6     3

>> B=[2 4;3 1]

B =

2     4
3     1

>> C=A./B

C =

5(=10/2)     3(=12/4)
2     3

D=A/B

D =

2.6000    1.6000
0.3000    1.8000

>> D=A*inv(B)

D =

2.6000    1.6000
0.3000    1.8000

Regards,
0

Experts Exchange Solution brought to you by

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

###### It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Programming Languages-Other

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.