One Man’s View of the World
TI85
Programs for the TI-85.
Vector Solver
Sep 30th
Allows you to solve vectors either by the X/Y or by the degree and magnitude.
Triangle Solver
Sep 30th
Triangle solver. This appears to be a somewhat recent app and I can't remember how to work it (the last I remember, it did work). Its menu driven (but not by the TI-85s built in menu – just standard text menus).
Temperature
Sep 30th
It appears to be a useless program at first. Actually, this is handy if you have a Radio Shack thermister and a multimeter. Use the multimeter in Ohm reading mode and attach it to the thermister. Then plug the reading in to this app to determine the temperature. The only problem with this is most thermisters are not exactly alike so your mileage might vary a little.
Target
Sep 30th
Here's another incomplete game. It might work, but then I forgot how to play it. There's a box. You must figure out the angle to hit the box (press Enter to input the angle). After that, its not clear what happens. Good luck!
Slope
Sep 30th
Here's another one of my favorite apps. Its gotten a lot of mileage and originally started out on a TI-81. It asks for X1, Y1, X2, Y2 which is typically in a text book as (X1, Y1), (X2, Y2). Plop the 2 coordinates in and it tells you the slope (M), distance between the two points, and the X and Y intercepts (if available).
Secant
Sep 30th
One of several Trig apps. This one displays how to find the secant as well as lets you plug the numbers in for the calculator to solve.
Russian Roulette
Sep 30th
I honestly couldn't remember if I wrote this one or not. But I misspelled the file name so I'm guessing I did. Its great to amuse friends with this.
Radians to Degrees
Sep 30th
Quadratic Equation Solver
Sep 30th
Give it A, B, and C and it spews out all sorts of nifty info regarding the equation. This app was originally done on a TI-81 and perfected over time. If its a valid equation producing two real numbers, then it will let you know if its a parabola and if it opens up or down as well as the exact points it crosses the X axis and the vertex point.
Pathag – Pythagorean Equation Solver
Sep 30th
Although the files are misspelled, this is one of my favorite programs and was originally created on the TI-81 (this version uses the nav menu feature so its no longer TI-81 friendly). The help button shows you the equation in its standard triangular form as well as the graph/cicle form. Select which variable you wish to solve for and the program will prompt for the other two and then solve for the third (or the one you selected).

