graphDS v0.1

News/release from MorganDS:

I've made some more progress on graphDS. Now there's an easier-to-use keyboard and it can even graph equations. Riemann sums and integration have their own keys, but the syntax is still the same as before.

Integrate: int(expression, left limit, right limit)
Middle Riemann Sum: RM(expression, left limit, right limit, rectangles)
Left Riemann Sum: RL(expression, left limit, right limit, rectangles)
Right Riemann Sum: RR(expression, left limit, right limit, rectangles)

So here's v0.1...

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Is there a possibilty we can read out the coordinates? So for example: I want to know the points where the graph hits the X-Axis or the Y-Axis...how to find out? Will this be implemented soon? So you can switch the two screens and zoom in or out to read out the coordinates? WOULD BE VERY COOL! BUT THANKS ANYWAYS :D :D :D thx

I added parametric and polar graphing. Everything else is the same as in the previous release, but now you can press Mode to switch between graph modes while on the graphscreen. Here are the defaults for parametric and polar graphing:
tMin = 0;
tMax = 6.283185307;
tStep = .05;
thetaMin = 0;
thetaMax = 6.283185307;
thetaStep = .05;

Currently, you cannot change these defaults, but eventually I will add capabilities for changing the window, etc.

v0.3...
graphDS.zip

Here's graphDS v0.4. I added a feature that lets you adjust the graphing window and the starts, stops, and increments for parametric and polar graphing. I also fixed the function input so that you can enter functions that are as long as you please. On the graphscreen's keyboard, I added a delete key, e, pi, and y (note: the y variable can only be used for slopefields and Euler's method, which currently cannot be accessed in the program).

Download: graphDS v0.4

If you like my program and want to make a small donation, you can do so at my site: http://robertson.heliohost.org