SURFACEA (LGM) v1.00
TI-89
"Surface Areas of Rotated Solids"
by Dmitriy Myedvyedyev (aka Dima Medvedev, aka Dimalitious D-Myster)
medvedbr@hotmail.com
Category: BASIC/MATH/CALCULUS
Starting - Completion Date: unknown
***THIS PROGRAM IS AVAILABLE WITH MANY OTHER USEFUL CALCULUS PROGRAMS IN A CALCPACK PACKAGE CALLED "CALC1LGM" (available by the beginning of April of 2002)
Copyright 2002 Dmitriy Myedvyedyev



-------------Description:
This great program calculates the surface areas of solids generated by rotating a function around an axis. 



-------------Instructions:
Transfer the SURFACEA.89P file to any directory on your calculator. When you run the program, you are asked to enter an EQUATION (equation, NOT a function, for example, you must enter "y=sin(x)" instead of just "sin(x)". This way you can also enter some ugly functions like "y^2 = x" where you would rather work in terms of f(y)), an interval (from a to b), and the axis that the function is rotated about. Then just press enter (or esc to cancel) and you will be given the approximate and exact values. Don't worry, even though there are mode changes during the program, your original mode settings are saved and are restored after the program executes.



-------------Update(s):
None. This is the first version of the program.



-------------Known Bugs and Important Notes:
It's important that you enter an equation in terms of x and y, and not just the function. The program is very accurate as long as you give it instructions that make the operations possible. If you try to do something that doesn't make sense, you'll either get an error or a wrong answer, so don't mess with it and enter the real working problems that have a solution. 
	
Approximate values are always correct, but the exact values sometimes cannot be calculated by the calculator and are returned as the non-evaluated integral.


-------------Thanks!
Thank you for downloading this program by Dmitriy Myedvyedyev. Please send your comments and/or suggestions to medvedbr@hotmail.com



-------------People to Remember:
Albert Einstein, Isaac Newton, Blaise Pascal, Euclid, Dmitriy Mendeleyev, Thomas Edison, Archimedes, Stephen Hawking, Alexander Friedmann, SB, SH, BM, AM, JC, FB, CC, DW, JS, TW, MM, CC, JH, TL, JC, SK, AL . . .  
             to be continued . . .

The universe . . . What a great puzzle! Number one on the unsolved mysteries list. 

-------------Dimalitious D-Myster-------------
Keep our world green! Protect trees to get us some mo' oxygen. Please recycle.
-------------Dimalitious D-Myster's Little Green Men Corporation