Mathematical programs

ru

Scientific calculator is written on c++, java and javascript

Fractals screensaver which draws nice fractal pictures

Plotter draws graphs online in standard y(x), polar r(a) or parametric x(t), y(t) coordinates

Expression parser of strings like sin(pi/4) is written in c++, java and javascript

Combinations and permutations enumeration program is written in c++, java and javascript

Big numbers library Helper C++ classes to perform operations with big signed and unsigned integers of arbitrary precision. Template class Fraction presents rational numbers

C++ library for working with Excel files Creation, deleting, editing of xls files, without #import instruction

Matrix library If you need work with matrices this program for you. I've wrote c++ class Matrix and define simple operations which are addition, subtraction, multiplication, division etc. It's not a program it just c++ code

Memory library Helper C++ template class for the automatic allocation and deallocation of memory for the one, two or three dimensional array