Simple program for plotting line graphs from equations

[Ideologue]

Does anyone know of a simple, easy to use, program (freeware or otherwise, but preferable the former) for plotting [line] graphs?

I am seeking a program into which I can enter an equation (or two of them for a combined graph) and then it does the rest!

Ideally it will be a program that does not require me to learn a special language in order to communicate with it. A program that will allow me to enter into it a formula as formulæ is normally expressed.

Thanks.

 

[rbj]

gnuplot? .

 

[Born2Perform]

http://www.getjar.com/products/2826/Graph

For symbian phones, freeware.
i use it when i have to design functions in analysis tests

 

[Ideologue]

gnuplot? .

Thanks. I just Googled it, will DL and give it a try!

 

[Ideologue]

http://www.getjar.com/products/2826/Graph

For symbian phone, freeware.
i use it when i have to design function in analysis tests

Thank you too! I will give this one a tryout also!

 

[Ideologue]

http://www.getjar.com/products/2826/Graph

For symbian phones, freeware.
i use it when i have to design functions in analysis tests

I DL'ed the version for PC, but it is a .sis file type. Is there anyway I can use a .sis on a PC?

 

[robphy]

For onscreen viewing on Windows,
Graphmatica http://www8.pair.com/ksoft/

from the "PowerToys for Windows XP", Power Calculator
http://www.microsoft.com/windowsxp/downloads/powertoys/xppowertoys.mspx
screenshot: http://www.winsupersite.com/images/reviews/wxp_pt_05.gif

For plotting on paper [and screen viewing], gnuplot [as mentioned above] is quite versatile
http://www.gnuplot.info/
http://t16web.lanl.gov/Kawano/gnuplot/index-e.html (great reference)

 

[Ideologue]

Many thanks, robphy.