Help with Matrix logic and indexing

how do i look through a matrix and count how many times this conditon occuers ( >= 40 & <= 50)

Answer 1

[Image Analyst]

Use sum():

mask = m >= 40 & m <= 50;   % Works for vectors or matrices where m is your array.
count = sum(mask(:))

[Trying to Try]

Thank you so much ive wasted to much of my day on this one

[Image Analyst]

Can you then click the "Accept this answer" link? Thanks in advance. 🙂

Answer 2

[Stephen23]

cnt = nnz(m>= 40 & m<= 50)