======= = = ===== ===== ===== = = = = = = = = = = = = = = = = = = = = = = = = = ======= = = ===== = == = = = = = = = = ======= ======= = = ===== = = = = Contents: -Description -Requirements -Instructions -Bugs- Liability -Contact Info -Thanx Description: Quadr = TI 83 plus program Quadr1= TI 83 program A program that takes four coordinates and determines whether it is a Square, Rectangle, Rhombus, Parallelogram, Line, Triangle, Trapezoid, Kite, or Quadrilateral. -also- A program that takes two coordinates and determines the slope. Requirements: TI-83/+ (program for 83 may not work) TI-Link Cable -or- Linking cable (should come this calc) Instructions: Example of an order pair: (1,2) Example of an order pair inputed into this program: 1st order pair A=?1 B=?2 Hit the 'program' key, scroll to 'Quadr' and press 'enter'. A menu should come up looking like this: What to do? 1:SHAPE 2:SLOPE 3:BUGS 4:CONTACT INFO 5:EXIT 1) If you need it to determine the shape of a figure from four order pairs on a graph, hit the '1' key or highlight '1:SHAPE' and press enter. Then input your four order pair, pressing 'enter' after each number. After the last one. It should take a second, then it should display what figure you have. 2) If you would like it to determine the slope from two order pairs, then hit the '2' key or highlight '2:SLOPE'. Then input your two order pair, hitting enter after each number. After the last one, It should give you the slope in fraction form. 3) Another form of exit. If you have already started the program, at any time you can hit the 'on' key and a display will come up like ERR:BREAK 1:Quit 2:Goto Either hit 'Enter' or '1' and you will exit the program DO NOT HIT '2' or 'GOTO'! You may accidentally mess the program up. Bugs- Liability: There is one bug, that I know of, on this program. It began when I had to use the slope. The slope of a verticle line is: ERR:DIVIDE BY 0 Because of this, when the program runs, it may have a problem if any of the lines are vertical. If it has this error, try re-inputing the points, and if that doesn't work, then you will have to do this problem by hand. Me, the programmer, does NOT in any way take responsibility for any problems that this program may cause. Any problems that are found, though, report them to me immediately and I will see what I can do about them. (see contact info) Contact Info: This is for QUESTIONS AND BUG REPORTS ONLY!! No hate mail please :) E-mail: Mattz4@juno.com Thanx: I send my thanks to: People at Google Groups - for helping me fix some bugs Geometry Teacher - for teaching me the figures properties Ti-83 World - for teaching me to program BASIC Texas Instruments - for creating these machines and programming TI-Connect My mother - for proofreading this sheet and testing the program