Table 5.0 with ESP

Table 5.0 adds 86-style tables to the 85. Below is an example of how to use it. Table 5.0 is more complex than the previous versions, I recommend reading all this file even if you are familiar with other tables.


Table 5.0 was written by Kevin Selkowitz, you can e-mail me at ihselk@oasis.bellevue.k12.wa.us with bugs, ideas, raves, and if you have to you can rant.

Updates to this program and other top-notch software is available at http://oasis.bellevue.k12.wa.us/interlake/other/calcprog/index.htm
All my really good stuff is at the above page, I only release a few things to other archives.


Operating Instructions

The equation we will be using throughout the demo is 1/((x-2)(x+3)). There are two ways to input the equation for the table. If you have already put the equation in the y=editor then all you need to know is which y= the equation is in. In this case the equation is in y1.

 

Next start up the program. If you have put the equation in the y=editor like we did last step then input the information like at left NOTE: the "y" in "y1" must be lowercase. If you have not put the equation in yet input the information like it is in the right picture. Every time you start the program it will ask for the equation, StartX, and Scale. The StartX is the first "X" value for the table. The scale is the number that should be added to X every time.

Next it will display the values of X and Y starting at 0 and increasing by one. The "ERROR" at the x-value of two is because when x=2 the denominator of the equation is zero and numbers are never divided by zero (if you don't believe me try 1/0 in your 85). This "ERROR" what ESP does, other table programs would stop working. While at this screen you can press the up/down arrow to go up/down one line. If you want to go up one whole screen press the left arrow or right to go down a screen.

If you press the [MORE] button (its next to the left arrow) a menu will pop up. Here you can change the scale, choose a new X-value to start from, round which I'll get to later, change the equation, or go back (get rid of the menu). If you press the arrow buttons you'll notice that you can't navigate up or down, if you press the back button you will be able to navigate again.

If you press the rounding button the screen at left will show. It is asking if you want to change the X or Y rounding value, or how many digits past the decimal it should show. The defaults are 4 for X and 6 for Y.

 

I decided to change the Y-rounder and made it 2.

 

 

 

As you can see now the Y values only show two digits past the decimal point.

 

 

When you want to quit press the [EXIT] key and it will ask you if you really want to leave.

 

 


Operating Notes
For this program to work correctly be sure you do the following:

Always remove the removable discontinuities (holes) from the equation before inputting it.
Substitute cos x/sin x for cot x and 1/tan x.
Simplify the equation as much as possible.

This program uses the "quit" program for some of its functionality, be sure to include the "quit" program when giving others the this program.

These programs may be freely distributed as long as they are not modified. You may not distribute the programs for profit. You may not post these programs to your own site without expressed permission from Kevin Selkowitz. All rights reserved.

These programs are thoroughly tested before being posted, however The Bellevue School District, Interlake High School, The Interlake Web Team, nor the writers of the programs can be held in any way responsible for any problems that may occur.