__Read me File for HGG's Math Programs (v
2.0)__

The Zip should contain:

_HGGEX.8xp *

_HGGFACT.8xp *

_HGGSQRT.8xp *

AEXACT.8xp

AHGGMATH.8xp

HGGDIST.8xp

HGGFACT.8xp

HGGMAIN.8xp

HGGSAVA..8xp

HGGSOLVE.8xp

HGGTRIG.8xp

HGGVECTO.8xp

STANDART.8xp

README.htm (this file)

* "_" will be <Theta> in the program menu, I liked to have the subroutines at the button of the program menu.

__Installation:__

You can put all programs on the calculator or refer to my web page for other program combinations

Start the package with the program AHGGMATH (will simply call HGGMAIN)

The first time the program is installed or the list SET is deleted, the
program will prompt a question: "Use save Var?" This means, do you
want to save all real variables to a list and restore the values after the usage
of my program. An example: You save 5 to variable A. You need this value for
further calculations! You want to use the quadratic formula of my program. This
function overwrites A. You can restore 5 to a if you use SAVE VAR. In case you
answer with Yes, the program HGGSAVA is required, otherwise you do not need it.

NOTE: This works only if the functions are called through HGGMAIN or AHGGMATH.

Use the functions of the program...

__Functions of programs:__

I will not go into detail of which program does what. See my web page for more details.

The main functions are:

- A quadratic and cubic equation solver (with complex solutions)
- A linear system solver for 2-10 unknowns. You enter the coefficients of
each variable and each equation in the following order:

C_{1}V_{1}+C_{2}V_{2}+....C_{n}V_{n}=Ans - A non-linear system solver for two equations in the form of y=. (Like the find intersection of two graphs, but more than one solution)
- Triangle solver. You choose a case as for example SSS or SAS and enter the three known properties. The program will return all sides, angles, side bisectors, angle bisectors, and altitudes. In addition is the area and perimeter displayed. (very, very helpful you MUST check it out!)
- Distance, midpoint and formula for two given coordinates
- Finds formulae for functions with certain attributes like known slope and known intersection of a coordinate
- converts vectors from component form to magnitude and direction form and vise versa.
- Adds, Subtracts and multiplies (scalar dot product) two vectors
- Checks numbers for being prim numbers (fast)
- Prim factors
- All factors
- Factorization of a quadratic accepts also fractions as valid coefficients and returns only integer coefficients!
- reduction of squawroots
- The program STANDARD simplifies the access to the important functions of a normally distributed curve
- Program AEXACT checks whether a strange decimal can be transformed to a nice exact value like 2pi/5

__What's new in version 2.0:__

- multiply bugs are fixed (primnumbercheck, find formula etc.)
- Exact values are now also returned as reduced squawroots
- Factorization of Quadratics
- The program AEXACT