Features

A calculator with scientific and programmer modes, a line-by-line calculation sheet and a unit converter in one application. Calculations are performed and stored on this device.

Key features

Three modes: Standard, Scientific and Programmer. Scientific mode offers trigonometric, inverse and hyperbolic functions, logarithms, powers and roots, factorial, combinations and absolute value; angles in degrees, radians or gradians.
Programmer mode: Hexadecimal, decimal, octal and binary are shown side by side; 8, 16, 32 and 64-bit widths; AND, OR, XOR, NOT, shifts and modulo.
Calculation sheet: Calculations are written line by line with the result next to each line. Variables can be defined (rent = 1,250 $), "total" adds the lines above, # adds a comment; several sheets are kept and can be saved as .txt.
Percentages and money: "1,250 + 18%" gives the amount with tax, "price - 15%" the discounted amount. Amounts marked with $, €, £, ¥, ₺ or R$ are written in that currency's format.
Units: Length, mass, temperature, area, volume, speed, data, time, angle, energy and pressure. The converter lists every equivalent of a value; the sheet accepts "5 km in mi".
History and memory: Every calculation goes into the history and comes back with a click; MC, MR, M+ and M− memory keys, and "ans" for the previous result.

Devices and browsers

On a phone, the calculator, sheet and units open as separate screens with bottom navigation.
The calculator is fully usable from the keyboard; digits and operators are typed directly.