Conic Section Gapher
v1.0
by Matt Gattis

(Good time to turn Word Wrap on...)

  This program simply graphs conic sections on the TI-83 or TI-83+.  This program will be very helpful for students in Pre-Calculus and maybe even AP Calculus (I don't know; I'm not there yet.) All you have to do is know the standard form of the equation and the program will graph it.

Example:

  x-4xy+4y+5(5^)y+1=0    (Equation of conic section)
  Ax+Bxy+Cy+Dx+Ey+F=0     (Standard form of the equation of a 			     conic section)
  A=1
  B=-4
  C=4
  D=0
  E=5(5^)    		    (I can't do a square root sign in notepad)
  F=1

And voila! The progam graphs it! Even degenerates!

Know Bugs/Problems:

  There are no known bugs in the program, but if no graph shows up, or the graph is of poor quality, one of two things could have happened. Either the window is not the right size, (try zooming in or out by adjusting the window and then regraph), or the graph is a degenerate (point, line, or intersecting lines) and falls on one or both of the axes. To fix this, simply turn the axes off and regraph.