![]() ![]() You can add extra constants or overwrite the default ones. * Evaluating trigonometric functions with either radian or degree angles. (except in the cases where Newton’s Method fails or limited precision causes problems) There are shortcuts for entering binary, octal, and hexadecimal numbers as well. * Converting to and from any base between 2 to 36. * Remembering all your variables and functions (and if you choose, the history as well) when the program is closed and restarted. * Keeping a full history of expressions and results. * Handling user-defined functions and variables. * Evaluating multiple expressions at once. * Evaluating all kinds of simple and complex mathematical expressions. It is capable of (but not limited to) the following: It supports evaluating multiple expressions at once, and unit conversions with GNU Units. It keeps a full history of past equations (calculator tape), shows reference listing of all available functions, and lets you define your own constants, variables and functions. It forgoes the usual array of buttons for a single textbox where you can type an equation or mathematical expression, hit Enter, and get a result. GlassCalc is a free, Windows calculator designed for quick input via keyboard. The T variable is used to create animated or time plots. Graph multiple functions by separating each equation with a comma. For example, "z=x+y" is just entered as "x+y". Plot 3D functions by using the x and y variables. For example, "r=2?" is just entered as "2?". Plot polar equations using the ? variable. For example, "y=sin(x)" is just entered as "sin(x)". When you use the x, y and ? variables in an equation the answer will say Touch to Plot. Plot graphs with a single touch! Solve plots 2D and 3D functions using the x, y and ? variables. Multiply numbers, calculate a tip and find a square root all without clearing your results! Solve has four tabs that select four different calculators each with its own color. Simply touch the answer to store it and touch the stored answer to use it in an expression. Solve is a calculator like no other! Solve solves expressions as you type and features an innovative memory system to store and recall answers. Please read the help for more information. If you don't need these modes, please make sure that 'Enable Radix Modes' is disabled in the settings. Press DEC to return to decimal operation. ![]() * 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. Degrees, radians and grads are supported, indicated by DEG, RAD, GRAD in the display. * If sin/cos/tan functions don't give the answer you are expecting, make sure you are in the correct angle mode. * If the percent key appears to give wrong answers, make sure you are pressing '=' at the end, e.g. * If you want data size conversions in multiples of 1024, use kibibytes, mebibytes, gibibytes, etc - see en./wiki/Kibibyte. If you find RealCalc useful, please consider purchasing RealCalc Plus to support further development. * Degrees/minutes/seconds calculations and conversion ![]() * Fraction calculations and conversion to/from decimal RealCalc Plus contains all these features, plus: * Configurable digit grouping and decimal point * Scientific, engineering and fixed-point display modes * Trig functions in degrees, radians or grads RealCalc includes the following features: See elsewhere on this page for the link, or select 'Upgrade' from the RealCalc menu. Looking for fractions? Degrees/minutes/seconds? Landscape mode? You need RealCalc Plus. A fully featured scientific calculator which looks and operates like the real thing. ![]()
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