MATLAB: In documentation it says mod(a,m) will give the remainder of a/m with example mod(23,5) = 3. However 23/5 is 4.6, 4 with a remainder 6 not 3. Whats going on here

Question

a = mod(23,5)

b = 23/5

Answer 1

You are misinterpreting the mod function.

Illustrating —

num = 23
den =  5
quotient = fix(num/den)
modulus = num - quotient*den

producing:

quotient =
     4
modulus =
     3

Also:

     modulus = (num/den - quotient) * den

with the same result.