Last blog post, we talked about how to add and subtract matrices. Now, we will start getting into multiplication for matrices. There are two types: scalar multiplication and matrix multiplication. In this blog post, we will talk about the simpler of the two, scalar multiplication.
Scalar multiplication is when you multiply a matrix by a value, called a
scalar. In scalar multiplication, you multiply each element of the matrix by the scalar.
Here is what scalar multiplication looks like:
Pretty simple, right? Now, let’s see some examples.
First example (
click here):
1.
Multiply each of the matrix elements by the scalar
2.
Simplify
Next example (
click here):
1.
Multiply each of the matrix elements by the scalar
2.
Simplify
Last example (
click here):
1.
Multiply each of the matrix elements by the scalar
2.
Simplify
As you can see, scalar multiplication is pretty simple. In a later blog post, we will go over matrix multiplication. For more help or practice on this topic, go to Symbolab’s
Practice.
Until next time,
Leah
