Last Updated 10/31/2022

Sage Essentials
Section 7: Matrix Manipulations

Matrix Operations

We use the usual “+”, “-”, and “*” operators for matrix Addition, Subtraction, and Scalar Multiplications.

Example 1

Compute the sum and difference of the two matrices $A=\left[\begin{array}{cc}1& 0\\ -1& 1\end{array}\right]$  and $B=\left[\begin{array}{cc}0& 1\\ 1& -1\end{array}\right]$ .

Compute $5A$ .

Try this!

For the matrices A  and B defined above, compute $2A-B$ .