Solved questions #1 and #3.
Added plot.
Fixed .gitignore.
Solved a few more questions.
New plots.
Removed empty comment.
Small refactoring to improve some function names.
Code that answer questions #8 and #9.
Added solution for question #4.
Added possible explanation to question #10.
README for week #5.
Fixed convention.
Improved notation.
Testing stuff.
Removed file.
Improved notation.