A fully featured scientific calculator which looks and operates like the real thing. * Result history * Unit conversions * Percentages * 10 memories * Binary, octal, and hexadecimal * Trig functions in degrees, radians or grads * Scientific, engineering and fixed-point display modes * Physical constants table * Digit grouping * RPN mode * Full built-in help If you find RealCalc useful, please consider buying the 'donate' version to support further development. This has all the same features, plus: * User-customizable unit conversions * User-customizable constants table Quick FAQ: * If any of the digit keys are disabled, or the decimal point doesn't work, or you have answers with letters in, or basic arithmetic appears to be wrong, then you are in binary, octal or hexadecimal mode. Press DEC to return to decimal operation. (BIN/OCT/HEX modes may be entered accidentally via a long-press on add, subtract or divide). * If sin/cos/tan functions don't give the answer you are expecting, make sure you are in the correct angle mode. Degrees, radians and grads are supported, indicated by DEG, RAD, GRAD in the display. Use the DRG key to change mode. * If the percent key appears to give wrong answers, make sure you are pressing '=' at the end, e.g. '25 + 10 % =' will give 27.5. * If you want data size conversions in multiples of 1024, use kibibytes, mebibytes, gibibytes, etc - see en.wikipedia.org/wiki/Kibibyte. Please read the help for more information. Recent changes: v1.6.3: * Added option to preserve state on calculator close (see 'Keep State' option in settings). * Fixed bug in RPN stack persistence. * Fixed crash on divide-by-zero before open parenthesis. Other recent changes: * Added full-screen option. * RPN stack is now preserved on close. * Reversed RPN stack dialog to match display. * Corrected units of Planck constant. * Fixed bug in implied multiply before opening parenthesis. * Fixed crash when opening copy/paste dialog on Honeycomb. Content rating: Everyone... Read More

Developed by Quartic Software