Graphing Software

What software would you guys recommend for graphing purposes? I'm looking for something easy like just punching in the numbers and making a graph. I also need functions like "make line of best fit". Thank you and please reply.

 

What type of analysis are you looking for? Simple (X,Y) data set with linear and/or nonlinear regression? You can do a lot of this in simple spreadsheets, if you want very simple. Does it need to be free? A little more detail would help in pointing you in the best direction.

Blue

 

You should be able to do that in Excel, and I assume (free) Open Office's spreadsheet app can do that same.

 

dia is great for drawing graphs, you can just move the lines around with your mouse
http://dia-installer.sourceforge.net/
http://en.wikipedia.org/wiki/Dia

 

I've found the Derive 6 product line to be very useful for graphing and other calculus needs. It's quite expensive I believe, but most educational institutes tend to give it out for free for certain classes.

For regression in my business statistics courses, I've found the MINITAB program to be intuitive and easy to use.

 

Free or not free dosen't matter. I need simple non-linear and linear x-y plotting software. Free is preferred though :d