NiceCalc is simple, easy to use and powerful calculator with scientific functions, made in a style of pocket calculator.
Main advantage over similar S60 products is NiceCalc combines fast "just-one-click" interface with broad set of functions.It was designed as a tool that is convenient for both elementary and scientific calculations.
For example, the expression "sin²(60) + cos²(60)" can be calculated using NiceCalc in 14 keystrokes. Some known and popular S60 3rd party calculator forces you to press 36 buttons to do the same.
One more example: "2 ∙ (–3) + 4". That are 7 clicks on NiceCalc and 16 clicks on the standard (built-in) S60 calculator.

Short list of features

• Minimal positive number: 1E-99
• Maximal positive number: 9.(999)E+99
• Double-precision (15 decimal places)
• Animation of keystrokes (simplifies navigation)
• 3 modes of angle calculations: degrees, radians, grads
• Indication of memory cell, current angle unit and function mode
• 2 panel skins: dark and bright (e.g. bright skin is better in case of sunlight)
• Support of "simplified" form for binary operations (see "Usage" section for details)
• Easy and fast "just-one-click" interface. To do an elementary operation, just need one keystroke. To do a scientific operation, need two keystrokes.

Program's FAQ, extra info and additional localizations can be found on the official web-site.