Do you remember the days, making a column of hundreds of values in your spreadsheet app, that could emulate an x-value. Maybe I just was cheap or didn’t have internet access. Of course it was all right if you had your nifty TI-85 calculator handy, but if you didn’t, or say you needed that graph for your presentation. Sure there was real software that could graph your equations, but they most likely cost money. I have not done much graphing lately, but hearing news of Calc5 made me smile.
The site is still pretty bare, but it’s nice and simple. Some extra features, for bigger graphs and maybe plotting some of your own values wouldn’t hurt either. But it’s a start. Yes, I am sure there are freebie graph calculator’s that can be downloaded (i.e. GnuPlot for PC), however internet can sometimes be just what you need, when you don’t have all your apps where ever you go.
I have recently been made aware of some other online graphing calculator solutions:
Webgraphing and GCalc
At a first glance they seem a little more complicated, but do offer some more options. (Webgraphing might have some membership requirements – I have not verified this.)
Another free online calculator capable of plotting is Mate found under http://www.tusanga.com . It can do xy, polar, pie, bar and column plots. The focus though is not just on plotting. It provides approx. 75 math functions. You can use it evaluate expressions containing variables, intervals, complex numbers, sets, matrices and user-defined functions. If you need it to remember values between calculations be sure to use the sessions feature.
Hello Mr. Williams and thanks for stopping by and telling about the tusanga calculator. I’ll will go check it out when I have a spare moment.