Tired of manually finding the Riemann sums? Don't like drawing the graphs? This program might be of use for you! Currently, it is able to calculate most of the Riemann sums (see below). The difference between this program and all other common Riemann sums calculators? This one actually shows you how to write the equation. All you need to do is substitute in the variables (which is not pretty for trigonometric problems).

The program can calculate:
* Lower Sum [*]
* Upper Sum [*]
* Left sum
* Right sum
* Midpoint sum
* Trapezoidal rule sum
* Simpson's rule sum
[*] = Experimental, not 100% accurate

More information on Riemann sum: http://en.wikipedia.org/wiki/Riemann_sum

Update 3/25/13:
* Updated with experimental lower and upper sum calculations [do not depend on it]
* Small menu changes
* Graph window display changes
* Small bug fixes

Bugs:
* Graphing window range may be distorted if the sum calculated over [a,b] has a limit to infinity (example: 1/x over [-1,1]). This is caused by the program's function of finding max/min points on the interval and setting them as window range.
* Graphing trapezoidal sums gives you 1 subdivision too many for selection.

Animated screenshot [new]:


Static screenshots [old]:







Download the Program

I'd say you are doing great with this program so far! Sadly, I never pursued math to the point of needing something like this, but I can see it being handy for students.

If you'd like, you can post your programs in a .zip format to the archives here on Cemetech, and update it when you get more of your project finished. Just please make sure to include a readme file.

And there are 2 major contenders for emulators, if you get yourself a ROM image of your calculator; jstified and wabbitemu, which would more easily allow you to create screenshots. Just a thought for future ones, if you are interested.

Awesome work, so far, and I'm eager to see future updates

Thanks for the suggestions! I updated the OP with some screenshots. I might upload it to Cemetech in the future, but I want it to be complete before doing so.

Updated.

I made my own version of this when i was in calc in highschool, before my calculator was stolen it was very handy to have. i started making it because my teacher had one that he had gotten off of another teacher at a conference, and it was huge and very messy, so i wanted to prove to him it could be small. I think mine was under 1000 bytes including drawing the graphs. I cant look now because unfortunatly (slaps self) i didnt back it up once i finished it. But definetly a handy thing to have.