Tools and Games
For when your solar-powered calculator isn't enough.
Here's a good way to double-check your work.
The moldy old history of matrices.
What is an augmented matrix, anyways? Find out here.
In case you've never seen what we're talking about.
A solid intro to matrices from a dude with a radio-announcer voice.
Go back to the old-fashioned pen-and-paper method.
They know math like it's no one's business.