Many customization options: precision, maximum/minimum number of decimal places, complex form, multiplication sign, etc.Įxact or approximate value: sqrt(32) returns 4 * sqrt(2) or 5.66. Matrices and vectors, as well as related operations (determinants, etc.) Supports all common number systems, as well as negative and non-integer bases, sexagesimal numbers, time format and Roman numerals.Ībility to turn off functions, variables, units or unknown variables to reduce confusion: for example, when you don't want (a+b)^2 to mean (are+barn)^2, but ("a"+"b")^ 2 5 (3) + (2( 3 +5 = ln(5) / (2.5 * 3) + 2 * (3 + 5)Įxpressions can contain any combination of numbers, functions, units, variables, vectors and matrices, and dates. Is free software licensed under the GNU Public License v2 (or later).īasic operations and operators: + - * / mod ^ E () & || ! >= >įault-tolerant string parsing: log 5 / 2. Features include a large library of custom functions, unit calculations and conversions, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, graphing, and a user-friendly interface (GTK, Qt, and CLI). It's easy to use, but provides the power and versatility usually reserved for complex math packages, as well as useful tools for everyday needs (such as currency conversion and interest calculations). Qalculate! is a multi-purpose cross-platform desktop calculator. Interface language: Russian, English and others.
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