Math: 3x3 = 3^2 physics: cmxcm = cm^2
3cm x 2cm = (3x2)(cm x cm) = (math)(physics)
The context gives the meaning.
Or in computers, how many bits would the representation of a matrix of 2b x 2b occupy? 2b x 2b = 4b (not 4b^2 since memory is linear)
Math: 3x3 = 3^2 physics: cmxcm = cm^2
3cm x 2cm = (3x2)(cm x cm) = (math)(physics)
The context gives the meaning.
Or in computers, how many bits would the representation of a matrix of 2b x 2b occupy? 2b x 2b = 4b (not 4b^2 since memory is linear)