finish hw 2
add midterm info
add hw2 instructions
begin hw 3
begin hw 3
finish hw 3 problem 1
begin hw 3 problem 2
implement hw 3 problem 2
clean up code for hw 3 problem 2
write up results for hw 3 problem 2
fix typo in hw2
update hw 3 problem 2 to avoid using stats library
begin hw 3 problem 3
implement mean-shift algorithm
finalize hw 3 problem 3
finish hw 3 problem 4