Some Notes on the Talking Graphing Calculator:

When you run the Talking Graphing Calculator program, make sure the speakers are on

A Summary of The Talking Graphing Calculator.

The Talking Graphing Calculator is designed to be used in two ways:  The main way is for a person with no vision using only the keyboard. Another way is for a person with normal vision using the buttons and other controls in the windows.

Both are integrated in all the four windows in this program.  Because of this integration a person with partial vision can use both ways.

The keyboard way is to use two letters to call up functions and commands.  For some commands one character, and for some functions three characters are required.  These are summarized below.

Using the keyboard:

Information on How to go from one Window to another: There are four Windows in this program. - A Calculator Window and an Information Window for it, and an Equation to Graph Window and an Information window for it.

When you start the program you will be in the Calculator Window.

To get to the Equation to Graph Window from the Calculator Window press the keys. G, then G.  To repeat, press G two times.

To get from the Equation to Graph Window to the Calculator Window press the keys C, then C again; To repeat press C two times.

When you are in either the Calculator Window or in the Equation to Graph Window and want to get to their respective Information Window, press the key Z and Z again. To repeat Press Z two times.

To go from either of the Information Windows back to the Calculator Window or the Equation to Graph Window press the nine key once.

Information on how to change the voice qualities.

You must be in the Calculator Window for this.

To change the pitch Press V, then Press P.

To change the speed or how fast the voice speaks Press V, then Press S.

To change the volume of the voice Press V, then again V.

To change the Type the voice Press V, then T.

Voice Type is indicated by integers from 1 to 16.

Experiment with different numbers.

The following is for the Calculator Window:

Special Keys Information:

For numbers, type the digits, decimal, e for power of ten, and the tilde sign for negative.  For adding, subtracting, multiplying, dividing, mod, x to the power of y, and integer division type the first number, then the symbol, then the second number, then the equal sign.

Type M for mod.

Type X for x to the y.

Type backward slash for integer division.

To change the sign of a number Press: CS.  That is C, then S.

You use the minus sign to subtract, but for a negative sign DO NOT use the minus sign, instead use the tilde key; which looks like a squiggly minus sign. ~.

For the powers of ten symbol use small e, or large E.

Example: 2.34e26  OR  ~2.34e~6.

To choose the number of decimal places you want in your answer press ND

Two letter abbreviations for the Calculator Window:

Keys information for trigonometry:

Key in the number first, then press the two letter keys for the function.

The two letters for each function follows.

The default angle measure is the degree.

To choose either degrees or Radians Press DR.

Sine                                SI

Cosine                              CO

Tangent                             TA

Inverse Sine or Arc Sine             IS

Inverse Cosine or Arc Cosine       IC

Inverse Tangent or Arc tangent      IT

Hyperbolic Sine   (Sinh)            SH

Hyperbolic Cosine (Cosh)            CH

Hyperbolic Tangent(Tanh)            TH

Keys information for other mathematical functions.

Key in the number first, then press the 2 letter keys for the function.

The two letters for each function follows.

The default logarithm base is ten.

To choose another base                  LB

Logarithm                           LO

Inverse Logarithm                     IL

Natural Logarithm               LN

Inverse Natural Logarithm         IG

Reciprocal or Inverse of a number        IN

Square of a number                  SQ

Square Root                         SR

Cube                                CU

Cube Root                           CR

Pi                                  PI

Random number                        RN

Factorial                           FA

Absolute Value                         AB

Integer of a number                  DI

Keys Information for using the four memory functions:

One of the letters used for all four functions is N, not M"

To store a number in memory            SN

To add a number to the memory        AN

To Get a number from memory            GN

To Clear the Memory                  CN

Command Key Information:

To clear the numbers used so you can start with a new calculation   CL

To round off the current number                  RO

To leave this program                              LV

To hear the name of the author of this program  AU

Two letter abbreviations for the Equation to Graph Window:

The default angle measure is the degree.  To choose either degrees or Radians                                   DR

The default logarithm base is ten.

To choose another base                        LB

To choose the number of decimal places

Setting up the Equation.

In Equations: Use the minus sign to subtract, but for a negative sign DO NOT use the minus sign. For the negative sign use the tilde key; that looks like a squiggly minus sign. ~."

To type in the Equation                  TP

To hear the Equation spoken            SA

Keys for various mathematical functions:

When necessary place open and closed brackets around any parts of the equation. For instance grouping parts to be calculated first.  Brackets can include other brackets.

For numbers, use the regular digits from zero to 9, the period for the decimal point, e for powers of ten, and tilde for the negative sign.

For Subtracting                   Minus key

For multiplying                   Asterisk key

For dividing                         Slash key

For Exponent      Exponent key, that is usually above the 6 on the keyboard

For integer division                Back Slash key

For X                               simply use x

For the following use three letters:

For Sine                            SIN

For Cosine                          COS

For Tangent                         TAN

For Inverse Tangent or Arc Tangent       ATN

For Inverse Sine or Arc Sine        ASN

For Inverse Cosine Or Arc Cosine      ACS

For Logarithm. for various bases LOG

For Inverse Log                     EXP

For Mod                             MOD

For Hyperbolic Sine              SNH

For Hyperbolic Cosine                  CSH

For Hyperbolic Tangent                 TNH

Using the Graph:

To tell the computer what to do will require a two letter press.

These are listed below:

For a new Start X for the Graph       SX

For a new Finished X for Graph      FX

For the Minimum Y, that is the

Lowest Y, shown on the Graph       LY

For the Maximum Y, that is the

Highest Y, shown on the Graph       HY

For the number of points wanted

on the Graph                        NP

To actually Graph the equation       GR

To hear the graph                   HG

To change the Note Duration

For hearing the graph               DU

To find the Y Value for a given X      YY

In the Equation to Graph Window:

If you have partial vision it may be useful to check the

'Allow Large Print' checkbox in the upper, right corner.

This will cause the lettering to be enlarged for the part of the

Window over which you have the mouse.

If you attempt to change the numbers by clicking on a textbox, make sure you keep the mouse and therefore the cursor in the area of the textbox, otherwise you won't be able to change the number.

If you cannot see a graph you may have to change the x and y

ranges.

It is a good idea to experiment with various parts of each window.

In the two information Windows you can type the digits 0 to 9 in the Calculator info Window, and you can type the digits 0 to 5 in the Equation to Graph info Window to get specific information.

Enjoy,

Orland Hooge

Sardis (Chilliwack), BC