Infinite Domain (basic)

Name:         Infin: dsin, dcos, and dtan
Author:       Wilson W. Ng   Waesh@yahoo.com
Version:      1.1
Machine:      TI-82, TI-83, and TI-83plus
Released:     May 11, 2002
Description:  Displays the general equation for the domain of the six trig functions from negative
		infinity to infinity. (Example: sin theta = 1/2 at pi/6+2piN and 5pi/6+2piN)

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Instructions
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This program works when the y value equals to 0, 1/2, square root of 2 divided by 2, square root of
3 divided by 2, 1, -1/2, -1, -square root of 2 divided by 2, etc. 

Dsin, dcos, and dtan are subroutines. Run INFIN as the main program and hit
enter at title screen.

(Y) input the y value of the trig function such as (-1/2) for sin theta = -1/2
 and hit enter.

Then, select the trig. function.

(N) equals any integer for the general equation

If you want to find csc, sec, and cot, just flip the y value and select their opposite such as sin
for csc.

Example: 
	sec theta = 2
Type in 1/2 for (Y).
Select the cos function.

If you want to type in undefine for the (Y) use the number (9).
Example:
	tan theta = u
Type in 9 for (Y)
Select the tan function.

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Version 1.1
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Fixed some bugs. 


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Known Problems
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There might be some minor problems with the program. This version was ported 
from my 86/85 without testing the program on the 82, 83, and 83 plus. However,
I looked through the texas instrument guidebooks in the programming section of
the 82 and 83plus. If you know a little about basic programming, you can probably
fix the I/O and Ctrl errors.


If you find any more bugs, have any ideas for improvements or just want
to send a comment, please contact me at:
waesh@yahoo.com


DO NOT SEPARATE THIS DOCUMENT FROM THIS PROGRAM!

Copyright (C) 2002 Wilson Ng
