PalmaryCalc is a calculator with a user-friendly interface.
It is all in one: from a simple calculator to a scientific, conversion functions (from cooking to astronomical), credit, base number conversions between binary, octal, decimal, and hexadecimal; 32-bit, 16-bit, and 8-bit integer math calculations and conversions; logical and bit-manipulation operations, currency conversion, or any other calculator configuration that you desire.
The variety of input methods (including RPN) enables you to perform almost all operations you need.
FeaturesUser-friendly interface Treo 600/650 support Hi Res (320x320) support 15-digit display 35 basic math and trigonometric functions Mortgage rate calculations Tip calculations Unit and currency converter User adjustable currency listUser adjustable constants list3 different input methods (simple, algebraic, RPN) 4 different modes display modes RPN stack viewing Accurate calculation: features up to 18 digits after the decimal point Accurate result display: features up to 12 digits after the decimal point Calculation range (1e-300, 1e300) Memory capacity up to 10 independent values15 most common constants Fully supported Palm clipboard Graffiti and Palm portable keyboard support Easy first-letter search through the listsUpdate DescriptionCurrrency View is completely redesignedAutomatic update of currrency rates is added