Jan
9
2012

## Lord of the Rings

Today we’ve started learning about Rings. That was the first thing that popped into my head. Yeah, I know, a bit lame…

Jan
9
2012

Jan
3
2012

For those of you who doesn’t know Linear Algebra (yet…), the matrix on the blackboard is a reflection matrix, when multiplying with a vector, the matrix will change the sign of the x coordinate, therefor it will create a reflected image of the vector.

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Jan
2
2012

Today in Algebraic structures class we’ve learned about free groups. And learned that (the rationals) is not a free group…