I'll look into LMMS. Do you have any suggestions other then that for free software I should use for composing/creating the music?

The music it shows there is written for the instrument and tenor is Bb and Alto is Eb so thats where the key signature came from.

I was planning on making it slow down in the last measure of vivace but I couldnt figure out how to do that in musescore. For the wandering i think I just have to work some more on it. Hopefully experience will help there.

I meant the advanced integration techniques. Most of the advanced techniques are BC only.

no but you end up having the integral be on both sides then its just algebra to work through it

u=sin(x)
dv=e^x
integrate(sin(x)*e^x)=sin(x)*e^x-integrate(cos(x)*e^x)
for this integral you repeat the process
u=cos(x)
dv=e^x
integrate(cos(x)*e^x)= cos(x)*e^x-integrate(-sin(x)*e^x)
move the negative out of the integral
integrate(cos(x)*e^x)= cos(x)*e^x+integrate(sin(x)*e^x)
substitute back in and you get
integrate(sin(x)*e^x)=sin(x)*e^x-(cos(x)*e^x+integrate(sin(x)*e^x))
integrate(sin(x)*e^x)=sin(x)*e^x-cos(x)*e^x-integrate(sin(x)*e^x)
2*integrate(sin(x)*e^x)=sin(x)*e^x-cos(x)*e^x
integrate(sin(x)*e^x)=(sin(x)*e^x-cos(x)*e^x)/2

thats one of my favorite examples my TA showed me on integration.

its a common simple example. If you want to see an interesting example look up sin(x)*e^x its a really interesting use of the rules

pimathbrainiac. How far up are you? If you ever want any help just ask here on omni theres lots of good people here to help you with math problems.

I'd be glad to help where I can in the code. The one problem you might have is that even if you are good at coding in C/++ the hard part will be the math. Some of what you want to do will require really hard math. If you need any help from me I'd be glad to help.

I'm good at C/++ and python

It might be nice to have a basic like language though so non-programmers can put basic things into their calculators. I'm not sure I fully understand your reasoning for not using a prebuilt CAS. I'd think something like maxima or octave would work well, and if you want to be able to have it more integrated into C++ it shouldn't be too difficult to build classes on the function they already have. I think for this you should use C/++ as the asm like language of the 84 and have something(python, lua, basic) as a language for quick programs.

You might want a lighter OS though I do like debian it is heavier then I'd want on a calculator. I'd be glad to help on these projects if you can set up a QEMU instance for me to work with. ARe you going to try to make this SAT compatible? You have to do that to get real adoption of it in schools. Especially with debian you'd want more RAM to run much. The best thing would probably be a custom linux distro. With your specs it cannot run most packages for debian but you could build and set up a package system(I'd say see sabayon/gentoo for good ways to do that) that people could download(I think an msi like format that installs itself would be best). Also for batteries you are going to want at least 2 days of active use to make it usable. That would be a 19200mAh battery. This is a great idea but you might want to work through it a little more.