A Complex Calc vs Calccis

Work with complex numbers, scientific functions and unit conversions on your iPhone. A Complex Calc keeps your expression, result and next step together. EDIT WITHOUT STARTING OVER Place the cursor where you need a correction, reopen your latest submitted expression, or edit History entries that retain their original input. Paste supported expressions and review them before calculating. Undo and redo recent input changes during your current session. USE SCIENTIFIC TOOLS IN PORTRAIT Choose Basic or Scientific without rotating your phone. Keep trigonometric functions, logarithms, powers and constants close, with degree and radian controls. CONVERT UNITS ON THE SAME SCREEN Convert length, area, volume, mass, temperature, speed, energy, power, pressure, time, angles and electrical quantities. Swap compatible units, copy a converted value, and return to your calculator session. KEEP AND SHARE USEFUL WORK Mark History entries as favorites and filter them for quick access. Share a completed or saved calculation as text or a PNG image, with its recorded expression and result. SEE COMPLEX RESULTS CLEARLY Compare rectangular and polar forms, inspect the complex-plane diagram, and copy either representation. Clearer error guidance helps you correct an expression, while automatic scientific notation keeps small nonzero results visible. Requires iOS 18 or later.

Calccis is a reverse polish notation (RPN) calculator. It supports basic arithmetic, trigonometrical, logarithm and exponent calculations for real, fractional, and complex numbers. Degrees and radians can be used for trigonometrical functions. You can perform matrix calculations, too. There is an undo stack, which supports undoing and redoing the 100 latest operations. Calccis does not copy or mimic any existing physical calculators. However, the operation of the stack has been influenced by how the stack works in the 1990s Hewlett-Packard HP-48 family of calculators.