 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.
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Supports basic functions of a calculator:
· Operators : +, , *, /, ^
· Functions : sin, cos, tan, exp, ln...
· Solve equations
· And much more..   x_calc Universal free, every day use calculator with scientific features. One of top.
Good for simple and advanced calculations! 

