 TouchMaths_ME The program TouchMaths (for touchscreen mobile phones) contain a set of revolutionary mathematical applications (Professional Calculator, Graph 2D, Function solver, Integral solver, Equation solver and Linear system solver)   x_calc Universal free, every day use calculator with scientific features. One of top.
Good for simple and advanced calculations!   Frink Frink  Frink is a programming language and calculating tool designed to help you make realworld calculations.
Frink is different than other calculating tools in that it tracks units of measure through all calculations. Thus, you can add feet and meters, multiply by grams, divide by pounds, and Frink does the right thing through all calculations   Touch screen Calculator Made with practicality in mind, Calculator is a simple and easy calculator app, ideal for your every. It is easy to use with large buttons, clean and stylish design, and provides the basic functionalities most people need for daily calculations   UPNCalc UPNCalc is a RPN (Reverse Polish Notation) calculator for mobile phones.
· Arbitrary precision unnormalized BCD arithmetic.
· Arithmetic standard functions (approximated to arbitrary precision): sin, cos, tan, arcsin, arccos, arctan, 1/x, sqrt(x), exp(x), ln(x), y^x.
· Angle measure in DEG, RAD or GRAD 

 Scientific Calculator Touch for S60V5 Touchscreen Scientific Calculator   Touchscreen Calculator Download & Enjoy   Scientific Calculator 2D This application makes it possible to use your mobile phone as a scientific calculator. You can plot multiple mathematical functions   MC calculator Universal free, every day use calculator withscientific features. One of top.
Good for simple and advanced calculations! This calculator has got a LOT of functions   MIDP Graphing Calculator MIDP Graphing Calculator  A graphing calculator for Java MIDP cell phones.
It actually implements a small programming language, parsing expressions into trees. One can define functions with an arbitrary number of parameters, and use the functions in java.lang.Math in addition to the normal operators 
