misc stuff

• How to calculate a square root by hand
• How to solve 1st, 2nd, 3rd and 4th degree equations
• How does RSA work
• How to implement calculations using shifts
• regular polytopes
• more regular shapes
• applet attempting to project 4d objects to a plane.
• volumes
• geometric functions
• Elementary algebra
• Elementary analysis
• Elementary geometry
• summary of some number theoretical terminology
• How long can I wait before starting a project?
• efficient method of iterating through primes
• about the ackerman function
• about leastsquares fitting
• about the '196' problem
• about fixed point calculations
• solving rubik's cube
• perl script demonstrating the quiz-switching problem
• extended version of gnu arbitrary precision calculator