Hi! I don't speak portuguesse but we can communicate on english if you want.
I am engineer of electronic by profession.I attend a lot of math curse like:
Linear Algebra(matrix, polinom's, releation's,vector anlisis, ..), Integral and differential calculus, Thery of probability, Complex analysis...by this i mean therey and calculus ..
So if you need help write [login to view URL] you are not good in English, we can communicate on universal math language ...
see you