edited text
edited problems
fixed Hessenberg algorithm
Updated Blackjack lab to be shorter, more understandable. Updated
solutions.py to reflect new problems created in the lab.
Grammar corrections. PEP8 compliance.
First Draft
Fixed up the lab. Updated the solutions file.
Merge branch 'develop' into FFT
Merge pull request #716 from jadams1988/FFT

FFT
fixed a typo
Merge pull request #708 from rachelwebb/QR1

Qr1
Files in first draft
Merge pull request #715 from forrestglines/facial

Facial Recognition
First additions to eigenfaces lab, trying to explain the math.
Finished adding content to the facial recognition lab.
Updated solutions and plotting file, re-generated the figures.
Merge pull request #719 from abefrandsen/eigenfaces

Eigenfaces