numpy

Question

Next week I'll begin a self course about numpy and scipy.
On SL, this will output code snippets and, I hope, some lesson for the existing SL course.
Meanwhile, why don't you share your numpy creations in this thread?
I begin in first comment.

Answer 1

https://code.sololearn.com/com0SBR0F2tl/?ref=app

Answer 2

https://code.sololearn.com/cDvyRKhUIeoU/?ref=app

https://code.sololearn.com/cKQRWkpqBgbp/?ref=app