    -----  -----  -----  /   /  /   /  /        /     ----     ---   -----  -----  -----
   /      /   /  /   /  /\ //  /   /  /       / /   /        /   /  /   /  /   /  /   /
  /----  /   /  /---/  /   /  /   /  /      /   /   ---       /    /   /  /   /  /   /
 /      /   /  / \    /   /  /   /  /      /---/      /     /     /   /  /   /  /   /
/      /___/  /   \  /   /  /___/  /____  /   /  ____     /____  /___/  /___/  /___/

P U T  Y O U R  8 3  O N  S T E R O I D S (TM)
http://www.geocities.com/mrfox64/formulas

I N T R O D U C T I O N
Formulas 2000 is THE most complete formulas suite available! Formulas 2000 is an updated and more
advanced version of the original "FORMULAS" for the TI-83. We've never seen the original Formulas
at any site, though somehow everyone's got it at our school and everyone also seems to each have
a different looking version of it. Anyway, we just wanted to give credit to the person(s) who
came up with the original program. However, we're glad to say that Formulas 2000 has been slowly
appearing on many calculators at our school...

Formulas 2000 contains over fifty formulas. This is NOT meant to be a CHEAT PROGRAM. It is a
program that we make as a hobby because we find programming interesting. We recommend using it as
a program to check your problems, don't get lazy, because you can't always use a calculator (some
teachers aren't happy campers when you use them; such as ours). Lastly, we accept all suggestions
for future programs, so send them in! Your input will help us make this program better. Please
visit the Formulas 2000 site, as you will be able to learn the latest news concerning Formulas
2000, be able to sign up for our newsletter, and at times we post information about how to get
test versions of Formulas 2000 before they are actually released.

I N S T R U C T I O N S
F2K: To install, just send f2k.83g to your calculator.  Then run it on your calculator by
     executing F2K.
NOTE: DO NOT DELETE ZBF & ZBF2, they are needed for the BFACTOR program which is a part of
      Formulas 2000.

T E C H N I C A L  S P E C I F I C A T I O N S
* Latest Release - Version 4
* ONLY for TI-83 & TI-83 Plus (may be coming to the TI-89)
* Is 3 programs; ZBF & ZBF2 are needed for the BFACTOR program (by Bryan Rabeler) to work
* Size: Over 11700 bytes
* Over 50 formulas

U P D A T E S : January 16, 2000
* It's here! Formulas 2000 v4 is finally available. A lot of new formulas are in it that we
  hope are helpful to you
* The menu system hasn't been done yet, as we haven't had much time, however, we know people are
  anxious for Formulas 2000, so it's been released before the menus have been redone. Version 4.1
  will definitely have the menu system redone, expect that version to be available in February. 
* Some more bugs were fixed
* More of the coding has been cleaned up

P R E V I O U S  U P D A T E: 12/22/1999
* Fixed some bugs (some major & some minor) in version 3.5b
* Changed About screen
* Please read the information concerning the next release at the bottom of this text file

E X P L A N A T I O N / T O U R - F2K
There are many formulas in Formulas 2000, hence the name.  It may be confusing to know what
program does what, so here's a brief explanation of some of the programs that you may not
understand and other things.
* Quadratic(QUADRATIC) - In the original formulas it just told the x intercepts, well now it
  tells you in addition to the x intercepts, the vertex, line of symmetry, discriminant, how many
  solutions there are, and if it's a maximum or minimum function. An error in the original
  Formulas made this program display incorrect answers, but that has been fixed. We're still
  improving this one though...
* Asymptote Solver(ASYMPTOTE) - We are proud to present to you, THE ONLY Asymptote solver for the
  TI-83/+. This will find the X and Y asymptotes of a rational function for you. If there aren't
  any X or Y asymptotes, it will also tell you that. Ok, the program will prompt for five things.
  They are: "Degree of numerator?", "Leading coefficient of numerator?", 
  "Equation of denominator?", "Degree of denominator?",  & "Leading coefficient of denominator?".
  For those of you who have forgotten, the degree is the highest exponent in the equation and
  when it asks for "Leading coefficient" it's asking for the number next to the "x" that has the
  highest exponent value. Let me walk you through a sample problem. Let's say the rational
  funcion was 1/(1-x^2) which is read as "one over one minus x squared". OK, since there is no x
  or exponent in the numerator, there's no degree. So put 0 when it asks for the degree of the
  numerator. Once again, there's no x so type 0 when it asks for the leading coefficient of the
  numerator. Now type in the equation of the denominator which would be 1-X^2, when it asks for
  the equation of the denominator. Now type 2 when it asks for the degree of the denominator,
  since 2 is the highest exponent value of the equation. Now type -1 when it asks for the leading
  coefficient of the denomoniator, since -1 is next to the x with the highest exponent
  value(-1 isn't actually there, but it's understood that it's there when you have -x). Now just
  hit enter and it will tell you the X and Y asymptotes, which are X=1,-1 and Y=0. It's kind of
  confusing to use but once you get used to it, it'll be really easy. The only problem with this
  program is that if there are no x asymptotes it will give you an error message. So just keep
  in mind that if it displays an error instead of the x asymptotes, then there are no x
  asymptotes.
* Box and Whisker(BOXNWISK) - OK, this program does a box and whisker plot for you. It can list 
  for you the lower extreme, lower quartile, median, upper quartile, and upper extreme and it can
  also graph it for you. When it says "Enter numbers as a list", you must first type "{" (without
  the quotation marks) and then type the first number. After each number you must type a comma.
  The last number should not have a comma after it but instead it should have a "}" (once again
  without the quotation marks). Is this confusing? Ok, if for example the numbers I had were:
  1,5,8,2,9,3,4 Then I'd type in the numbers like this: {1,5,8,2,9,3,4} and then hit enter. Now
  it'll display the lower extreme, lower quartile, etc. Are you wondering why you have to type
  in the numbers in that fashion? Well it's because we can't possibly know how many numbers your
  box and whisker plot will need. If we were to prompt you for each one like the other programs
  it would be really stupid, because we may not put in enough prompts, or too little. By doing it
  this way, we won't have to know how many numbers you need to input. Anyway, after showing
  the lower extreme, lower quartile, etc, it'll then ask if you want to graph the plot. If you
  select yes, it'll graph it and then let you trace it. Meaning, that you can use the blue arrows
  (Directional Buttons) on the calc to move from the median to the lower quartile or to the upper
  quartile, etc. When you're done looking at the graph, just hit enter.
* Piecewise Function Grapher(PIECEWISE) - This graphs piecewise functions for you. It can graph
  piecewise functions with 2, 3, or 4 variables. So let's say you have a piecewise that is
    {9     if X<-3  } So you'd select the "3 Equations" piecewise option. Now it'll ask for the
  y={x^2   if -3<x<3} first equation, just type it in as it looks, 9. Now it'll ask for the first
    {9     if X>3   } constraint which would be X<-3. It'll then ask for a second constraint,
  since there isn't one, just type 1. Now it'll ask for the second equation so type x^2. Then
  it'll ask for the first constraint so type in -3<x. Now it'll ask for the second constraint,
  since there is one, type x<3. Now it'll ask for the third equation so type 9. Now it'll ask for
  the first constraint so type x>3. Finally it'll ask for the second constraint, since there
  isn't one, type 1. Now it'll graph it for you. However, it doesn't draw the little circles
  at the beginning and end of each graph, you have to remember to draw those yourselves and
  draw the right circles. Remember, shaded circle when the sign is greater/less than or equal to
  and unshaded if it's just greater/less than. You can also type in the greater/less than or
  equal to signs for the constraints, I didn't use them since I can't type them out on the
  computer. One more thing, be careful if the equation was like y=2 if x=0. You won't see a line,
  you'll need to use trace to find the point.
* Regular Polygon Internal & External Angle Finder(IEANGLE) - This is a very simple program. It
  will find the angle measures of each internal and external angles in a regular polygon.
  Remember, a regular polygon, is a polygon that has all of it's sides and angles equal in
  measure. Ok, so let's assume you have a 15 sided regular polygon. So when the program prompts
  for "SIDES" just type 15. Now it'll display the angle measure of each(singular, one) internal
  and external angle. Simple enough.
  there isn't a second constraint, just type 1. Now it'll ask for the first equation
* Endpoint(ENDPOINT) - This is like a midpoint program, but this is used when you know the first
  two points and you know the midpoint, but need to know the last 2 points. Confusing? Ok, for
  example, if you the points you knew were (1,2) and you were given a midpoint of (2,5) and you
  need to figure out what the last pair of points are, this will do it for you. The answer would
  be (3,8).
* Distance(DISTANCE) - This is the distance formula, it now tells the slope, midpoint of the
  points, and of course the distance.
* Binomial Factor(BFACTOR) - This is a binomial factoring program (The best factoring program) by
  Bryan Rabeler. Also, to make it unique and different we have updated it to give you answers
  (like the answers in Quadratic) for non-factorable binomials.
* RadicalReducer(RADICALREDUCER) - This is another program by Bryan Rabeler (he makes great math
  programs, doesn't he?). It will reduce square roots of numbers and put them in radical form. 
  For example, if you wanted to know the square root of 180, it will display 6 root 5.  A is the
  number out side of the square root sign and B is the number that's inside the square root. So
  for the above example I'd type 1 for A, to multiply it by 1 and not change the answer and then
  for B I'd put 180.
* Systems of Equations(SYSOFEQUATIONS) - This solves a system of 2 equations that have 2
  variables. Like 3x+4y=5 & 2x+5y=7. You must type it in order using standard form (x+y=n). So
  you'd type 3, then 4, then 5, then 2, then 5, and then finally 7.  If it's not in standard
  form, then you're going to have to move the numbers around. There's also one to solve a system
  of 3 equations that have 3 variables.
* Prime Factorization(FACTOR) - We've only got two things to say about this one. First, the
  program is by Charles J. Srstka who was kind enough to let us use his program. You can find the
  original at ticalc.org, it's called "Prime Factor Program 3.61". The second thing is that if
  you can't see all the factored numbers on the screen, use the left and right blue arrows to
  move it around.
* Equation of a Circle (EQUOFCIRCLE) - This finds the equation of a circle using points from an
  inscribed triangle. Input the points of the triangle and it will give you "H" & "K" (the x and
  y points of the circle's center), and "R" (radius), you just need those answers to write the
  whole equation, which would be (X-H)^2 + (Y-K)^2 = R^2. It will also graph the circle with the
  inscribed triangle, to give you a visual.
* Area of Regular Polygons (REGPOLYGON) - A straightforward program, it finds the area of regular
  polygons that are circumscribed or inscribed in or around a circle. Just give it the info it
  needs to know, and you'll get your answers.
* Sequence (SEQUENCE) - This one's got a ton of formulas in itself. It's pretty straightforward
  on how to use it. The SUPERSUM program, basically does the combination of NUMBEROFTERMS & 
  SUM OF FINITE. Just tell it the first number (A1), the last number (An), and the common
  difference (CD), and it'll tell you the number of terms and the sum, in decimal and fraction
  form. For the SIGMA program, for the formula (the equation for the sequence), you need to use
  the variable "N" (without quotes). So if the formula was 2X-6, you need to type 2N-6. If you
  get stuck on some of them, just e-mail.

E X P L A N A T I O N / T O U R  O F  M E N U  S Y S T E M
* The formulas are split into three menus which are called "MENU ONE", "MENU TWO", "MENU THREE"
  (very original, isn't it?). The list below shows the programs that are in each menu and what's
  on the main screen. Also, at the bottom of "MENU ONE", "MENU TWO", & "MENU THREE" is the
  "RESTART" option, which takes you back to the main screen.

  ~MAIN MENU~     ~MENU ONE~          ~MENU TWO~        ~MENU THREE~
   -MENU ONE       -AREA               -BFACTOR          -ASYMPTOTE
   -MENU TWO       -QUADRATIC          -FACTOR           -BOXNWISK
   -ABOUT          -SYSOFEQUATIONS     -TRIANGLE         -PIECEWISE
   -SHUTDOWN       -ENDPOINT           -VOLUME           -IEANGLE
                   -DISTANCE           -RADICALREDUCER   -SEQUENCE
                   -SLOPE              -ENGLISH-METRIC   -EQUOFCIRCLE

* You still have to use the "MORE" option in some of the sub-menus, such as "AREA" and "VOLUME".

K N O W N  I S S U E S
* None

N E X T  R E L E A S E - Version 4.1
* Don't expect much, for now...finals are coming...
* Menu system will be redone
* A TI-89 version may be coming...some of the formulas have already been done for it

A V A I L A B I L I T Y
* Visit http://www.geocities.com/mrfox64/formulas for news & updates
* The latest release can be found at http://www.ticalc.org

C O N T A C T  I N F O R M A T I O N
* formulas_ti83@hotmail.com - send all comments, questions, criticism, bugs you find, etc.
* Our AOL Instant Messenger screen names: LLMC & MrFox64 - feel free to IM us, we're nice, OK?
* Join the "Formulas 2000 Newsletter" and get the latest news by going to 
  http://www.geocities.com/mrfox64/formulas

L E G A L  N O T I C E / C O P Y R I G H T / D I S C L A I M E R
* Formulas 2000 is (C)1999 Formulas Team and may be given away to any number of people (we want
  you to spread it!) as long as it remains in its original form. This text file must ALWAYS go
  with the program if it's transferred through the internet, of course it can't if you're
  transferring it from calculator to calculator.
* DISCLAIMER
  THE PROGRAM, FORMULAS 2000, IS PROVIDED "AS IS" WITHOUT ANY EXPRESS OR IMPLIED WARRANTY OF ANY
  KIND INCLUDING WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT OF INTELLECTUAL PROPERTY, OR
  FITNESS FOR ANY PARTICULAR PURPOSE. IN NO EVENT SHALL THE FORMULAS TEAM OR FOXE DESIGNS BE
  LIABLE FOR ANY DAMAGES WHATSOEVER (INCLUDING, WITHOUT LIMITATION, LOSS OF INFORMATION) ARISING
  OUT OF THE USE OF OR INABILITY TO USE THE MATERIALS, EVEN IF THE FORMULAS TEAM HAS BEEN ADVISED
  OF THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME JURISDICTIONS PROHIBIT THE EXCLUSION OR
  LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY NOT
  APPLY TO YOU. The Formulas Team & FOXE Designs further do not warrant the accuracy or
  completeness of the information, text, or other items contained within these materials. The
  Formulas Team & FOXE Designs may make changes to these materials, or to the products described
  therein, at any time without notice. The Formulas Team & FOXE Designs makes no commitment to
  update the Materials.

Formulas 2000 Documentation for TI-83