Category: General

Area of a Parallelogram

The sides of a parallelogram measure $10$ cm and $18$ cm. One angle of the parallelogram measures $46$ degrees. What is the area of the parallelogram, to ...

Meaning of relative homology

It is a bit easier to understand the homology $H_1(X, \mathbb Z)$ for various compact surfaces in analogy with handles and so on. There seems to be a nice...

Empty List is Sorted?

Is an empty list considered to be sorted? Let's say I have a math function sort that sorts a list of numbers. sort :: (Eq a) => [a] -> [a] The ...