element-by-element-multiplication#

Purpose#

Multiplies two matrices element-by-element (Hadamard product).

y = a .* b

param a:

Left operand.

type a:

matrix, vector, or scalar

param b:

Right operand.

type b:

matrix, vector, or scalar

return y:

Element-by-element product of a and b.

rtype y:

matrix

a = { 1, 2, 3 };
b = { 4, 5, 6 };
y = a .* b;

y =    4.0000000
      10.0000000
      18.0000000

a = { 1 2,
      3 4 };
b = { 5 6,
      7 8 };
y = a .* b;

y =    5.0000000   12.0000000
      21.0000000   32.0000000

Both operands must have the same dimensions, or one must be a scalar.
This is distinct from matrix multiplication (*), which computes the matrix product.