Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
To sum all the elements in a matrix you usually do
A = sum ( B(:) );
which is nice and short. However assume that we have a logical expression like this
B = B == 6
and we want to sum the elements of all the entries, then smartest way seems to be to do
A = sum ( sum ( B == 6 ) )
or
B = B == 6;
A = sum( B(:) );
Both are kind of ugly. So I was wondering is there a nicer expression?
A = sum ( (B == 6)(:) );
Would be nice but doesn’t work.
So what is so nasty about the simple solution…