QUOTE(HookerKiller @ Jan 15 2008, 02:27 AM)

A good graphing calculator, i don't know many online... but if possible get a Texas Instruments calculator for the computer
thanks chief
Well, I don't know much about math or graphic calculator software, but these seem to be the main graphing calculator applications cropping up time and time again in online discussions:
MadCalc 1.0

MadCalc is a full featured graphing calculator application for your PC running Windows. With MadCalc you can graph rectangular, parametric, and polar equations. Plot multiple equations at once. Change the colors of graphs and the background.
Use the immediate window feature to evaluate complex multivariate expressions.
Teachers can use MadCalc to create handouts for your classroom. Students can use it instead of that tiny calculator screen while you are doing your calculus homework.
MadCalc supports all the commonly used functions including trigonometric functions, inverse trigonometric functions, hyperbolic functions, logarithms, and rounding and absolute value functions.
MadCalc allows you to export your work as bitmap files for printing or editing.
MadCalc allows you to zoom in and out on graphs or set the scale in terms of x and y explicitly or scroll just by clicking on the graph and dragging it.
MadCalc provides all the essential graphing functionality without the complexity, cost, or overhead of something like Mathematica or MatLab.
Builtin Functions:abs(x) return absolute value of x
floor(x) return highest integer value less than or equal to x
ceil(x) return lowest integer value greater than or equal to x
mod(x,y) return remainder of x divided by y
sqrt(x) return the square root of x, same as x^0.5
log(x) natural logarithm of x
exp(x) e to the x power
sin(x) sine of x
cos(x) cosine of x
tan(x) tangent of x
arcsin(x) arcsine of x
arccos(x) arccosine of x
arctan(x) arctangent of x
arctan2(y,x) arctangent of y/x corrected for quadrant
sinh(x) hyperbolic sine of x
cosh(x) hyperbolic cosine of x
tanh(x) hyperbolic tangent of x
pi() constant for Pi
Operators from highest precedence to least:( ) parenthesis and comma
^ exponentiation
+ - unary plus and minus
* / multiplication and division
+ - addition and subtraction
= equals (assignment)
Homepage:CODE
http://www.madlogic.com/madcalc.html
CODE
http://www.megaupload.com/?d=BK5FG6MW
(Includes serial. Tested and works. PandaScan says "El Cleanio!" but check for peace of mind.)
PasswordRobbehQSS
Or as you mentioned
Texas Instruments, here's their
TI Interactive software:
TI InterActive!


TI InterActive! is an integrated learning environment in which you can create interactive math and science documents. Documents may include formatted text, graphics, movies, and live integrated mathematics. TI InterActive! documents are ideal for math and science communication
Teachers can use TI InterActive! to enhance students' learning through interactive lessons that encourage exploration, visualization, data analysis and writing. Students can use TI InterActive! to help them master math and science concepts, improve problem solving skills, create great looking homework, access and download teacher-prepared materials from the Internet, and more.
Start using TI InterActive right away! Several teacher activities are included with the school editions of the product. Additional activities are available from the TI InterActive! site.
TI graphing calculator functionality: TI InterActive! brings the power of TI graphing calculators to your computer. TI InterActive! includes significant functionality from the graphing calculator as described below:
- Function Graphing
- Parametric Graphing
- Polar Graphing
- Zoom, trace,and perform interactive calculations on graphs
- Function Table
- Math, Angle,and Test Operations
- Matrix Editor & Matrix Operations
- List Editor & List Operations
- Statistics Regressions
- Probability Distributions
- Tests and Intervals
It has a bunch of other features, I've just included the graphing bits and bobs.
Homepage:CODE
http://education.ti.com/educationportal/si...nteractive.html
CODE
http://rapidshare.com/files/28302514/ti-v13-VISTA.exe.html
(Full version, home-repacked to work with Vista so I scanned and PandaScan says safe - check yourself for peace of mind though.

)
Or you could always try a freeware option, which looks like it has enough features to make math fans faint(!):
Math MechanixsMath Software with 2D and 3D Graphing, Calculus, Function Solving and More

Math Mechanixs® is an award winning easy to use general purpose math software program compatible with Microsoft Windows®. It is ideal for students, teachers, engineers and scientists or anyone requiring an easy to use PC based mathematical software program. It will also do so much more than your calculator. Math Mechanixs was created with the belief that computers were made to solve mathematical problems. Our goal is to make math software available to everyone.
Math Software DescriptionMath Mechanixs is not a training aid or a spreadsheet program. It works using a Math Editor (as opposed to a Text Editor) allowing you to type the mathematical expressions similar to the way you would write them on a piece of paper. The software uses a multiple document interface so that you can work on multiple solutions simultaneously. There is a full feature scientific calculator for those of you who just like to press buttons. In addition there is an integrated variables and functions list window so that you can easily track your defined variables and functions.
Stunning Color GraphsYou can easily create large 2D and 3D full color graphs that are nothing less than "Stunning". With Math Mechanixs, 2D and 3D graphing of data and functions is easy. Our graphing utility allows you to label data points, as well as zoom, rotate and translate the graph. For more information see our graphing page or check out our screen shots page for examples of our 2D and 3D graphics. There is also Tutorials available that will help you quickly learn how to create various types of 2D and 3D graphs in Math Mechanixs.
Function Library and Function SolverThe math software also provides an extensive function library containing over 200 embedded functions which includes general math, trigonometric, chemistry, geometric, statistical, and numerous random number generators following a variety of statistical distribution and many other function categories. The library is also completely extendable by the user. Math Mechanixs also includes a Function Solver graphical interface that allows you to quickly obtain a solution, to any function, by only entering the input parameters.
Calculus UtilityThe Math Mechanixs Calculus Utility contains a numerical integration module capable of performing single, double, and triple integration. You can easily compute the integral of almost any mathematical function. This utility also includes a numerical differentiation module which is capable of performing single, double and triple differentials. You can easily plot the differentiation curve to locate maxima and minima with the click of a button. This utility is currently available for download in the latest release.
Homepage:www.mathmechanixs.com
Download:www.mathmechanixs.com/download/mathmechsetup.exe
(Freeware, untested)
Please check all downloads with your AV to stay safe from malware. I know nothing about calculus or graphing equations, but the freeware
Math Mechanixs looks like it could handle almost anything! Hope one or the other of these does what you need it to - enjoy

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