MATLAB: How to compare each element of matrix to specific number and count it

if statementMATLABmatrix

I have 3×3 matrix and i want to write code to count the elements which are less than 3 by using if statement .

m is your matrix, n is the number of values less than 3.

n = sum(m<3,'all')

There's no need for an if-statement.

for i1 = 1:40
  s(i1) = (sum(A(i1,:).*B(:).')>=1); (<-- Corrected)
end

t = 4;
f = [1 2 3 4; 2 3 4 5 ; 5 6 7 8 ; 1 2 3 5];
out = abs(f - t) < eps(100)

ADD

out = f;
out(f <= t) = -4;