Summary of Matrices

In class today I we went over the Matrices chapter.

You can see a recording of the class here

Here is the notebook I used in class: matrices.ipynb

We started with the quiz (won by Tom who has 1 win):

5 people have a single win:

• Daf: 2 wins
• Anthony: 1 win
• Ben: 1 win
• Joe: 1 win
• Millie: 1 win
• Tom: 1 win

After this we covered a couple of great questions:

• Using sym.solve to solve systems of equations (and why not to do it).
• Writing your own errors (which might be of interest to some of you next Semester)

Following this we spent some time looking at the coursework like question from the handout. We ended briefly by looking at the fact that we can constrain the domain of solveset. For example:

>>> import sympy as sym
>>> x = sym.Symbol("x")
>>> equation = sym.Eq(x ** 2, -1)
>>> sym.solveset(equation, x, domain=sym.S.Reals)
EmptySet