A bit more welcome text
Removed some python pseudocode
Removed YouTube link
Update geometry.tex

changed to vector notation for the first and second question
Update geometry.tex

changed for example $\verticalvector{3,2}$ to $\verticalvector{3\2}$
Update geometry.tex

changes of type:
$\verticalvector{3\1}$ to $\verticalvector{3\\1}$
Fixed typo
typo
typo
typo
Fixed matrix validators
Merge pull request #1 from sunayana/master

Update geometry.tex
Update length.tex

Changed  $\verticalvector(6,2,3,1)=$ to  $\verticalvector{6\\2\\3\\1}=$
Update angle.tex

changed \verticalvector(1,2) to \verticalvector{1//2}
Update cauchy-schwarz.tex

some typos changed
Fix comment in scale_vector python script to show we're scaling vectors, not adding them
Merge pull request #4 from sunayana/master

Update length.tex
Merge pull request #5 from mattwigway/scale_vector_fix

Fix comment in scale_vector python script to show we're scaling vectors, not adding them.
Fixed answer bg
Added missing validdators