This is a package of two integrated programs: Equation Grapher and Regression Analyzer. Equation Grapher is a function plotting and analyzing program. It allows you to draw graphs like y=2x and y=sin(x+10)-cos(x). It is possible to have up to 12 graphs plotted at the same time. Once you have plotted a function, Equation Grapher automatically finds roots, maximum/minimum, intersections etc. It can also calculate and view integration area.

Regression Analyzer is an analyzing and curvefinding program for statistical data. The program handles the usual regression models such as linear, logarithmic, exponential and power etc. It also supports polynomial models and multiple regressions. To find the best model for your data, simply use the auto function that finds the best model instantly. In the log window next to the graph you will get all necessary information, such as equation and correlation.

In both programs you can change the range of the graph, either by using the built in zoom functions, or by manually typing in the range values. If you like, you can copy the graph window and paste it into your word processor. Of course, it is possible to save your work and continue at another time.

Both programs are easy to use and are well documented with pedagogical help files. With this package you have all you need for drawing and analyzing graphs and statistical data.

Features

Equation Grapher

Automatically finds roots, maximum/minimum, intersections etc

Calculates and marks integration area

Derivative, tangent and normal functions

Angles in either degrees or radians

Save graphs as BMP/GIF pictures

Regression Analyzer

Handles all the usual models such as linear, exponential, logarithmic etc

Polynomial regression up to 5th grad

Multiple regression with up to 5 variables

Draw scatter, histogram and lines between the points

Send functions to Equation Grapher for further analysis

Both

Up to 12 graphs in different colors at the same time

All the necessary information are written in the log window

Very fast, draws most graphs in 0.1 seconds

Several zoom functions

Change the text of the x- and y-axis

Save and open files

Print graphs directly on paper

Copy and paste graphs into your word processor

Possibility to erase individual functions from the graph

Pedagogical help file that teaches you how to use the programs

**Download: 1.07 MB**

http://rapidshare.de/files/22516698/E_G_R_A_3_2.rar

**Password:**

www.devilived.com