operators-arithmetic

Programming

Arithmetic operations. + - * / ^ work on scalars and matrices (matrix multiplication for *). Element-wise operators: .* (element multiply), ./ (element divide), .^ (element power). Use element-wise operators when you want to operate on corresponding elements of arrays.

a + b

a - b

a * b

a / b

a ^ b

a .* b

a ./ b

a .^ b

3 + 4

[1, 2, 3] * 2

[1, 2; 3, 4] * [5; 6]  % matrix multiply

[1, 2, 3] .* [4, 5, 6]  % element-wise: [4, 10, 18]

[1, 2, 3] .^ 2  % element-wise: [1, 4, 9]