Are there programs which can help in my studies?

Hey guys,

i am currently studying engineering of information technology and i must say i am so f***ing lazy!

i am now in the 2nd semester but i didn't write the exams for the first semester because i was too lazy to learn
so i will have to write them later. i am looking for a program or app or something else which can help me in maths, physics
and electrical engineering! i have seen a nice app on android market but it cost money and still did not found it for free in the net.

so maybe there are ppl who also study this kind of enigeerring and use programs
thanks in advance!

Do any of your classmates use a program? If so, you might want to ask them.

I don't know if they use them.

But if there are android apps there are maybe computer apps