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Home » OlderGeeks.com Freeware Downloads » Office, Home Office, Business and Writing » Calculators » Qalculate! v5.5.2 | File - Download Qalculate! v5.5.2 | ||||||||
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A plea... Deanna and I have been running this site since 2008 and lately we're seeing a big increase in users (and cost) but a decline in percentage of users who donate. Our ad-free and junkware-free download site only works if everyone chips in to offset the revenue that ads on other sites bring in. Please donate at the bottom of the page. Every little bit helps. Thank you so much. Sincerely, your Older Geeks: Randy and Deanna Always scroll to the bottom of the page for the main download link. We don't believe in fake/misleading download buttons and tricks. The link is always in the same place. Qalculate! v5.5.2 The ultimate desktop calculator. Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation). Features include a large library of customizable functions, unit calculations and conversion, physical constants, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, plotting, and a user-friendly interface (GTK, Qt, and CLI).  Qalculate! is free software, licensed under the GNU Public License v2 (or later). Features: Math Library Calculation and parsing: -Basic operations and operators: + - * / mod ^ E () && || ! < > >= <= != ~ & | << >> xor-Fault-tolerant parsing of strings: log 5 / 2 .5 (3) + (2( 3 +5 = ln(5) / (2.5 * 3) + 2 * (3 + 5) -Expressions may contain any combination of numbers, functions, units, variables, vectors and matrices, and dates -Supports complex and infinite numbers -Propagation of uncertainty -Interval arithmetic -Supports all common number bases, as well as negative and non-integer radices, sexagesimal numbers, time format, and roman numerals -Ability to disable functions, variables, units or unknown variables for less confusion: e.g. when you do not want (a+b)^2 to mean (are+barn)^2 but ("a"+"b")^2 -Customizable implicit multiplication -Matrices and vectors, and related operations (determinants etc.) -Verbose error messages -Arbitrary precision -RPN mode Result display: -Supports all common number bases, as well as negative and non-integer radices, sexagesimal numbers, time format, and roman numerals -Many customization options: precision, max/min decimals, complex form, multiplication sign, etc. -Exact or approximate: sqrt(32) returns 4 * sqrt(2) or 5.66 -Simple and mixed fractions: 4 / 6 * 2 = 1.333... = 4/3 = 1 + 1/3 Symbolic calculation: -E.g. (x + y)^2 = x^2 + 2xy + y^2; 4 "apples" + 3 "oranges" -Factorization and simplification -Differentiation and integration -Can solve most equations and inequalities -Customizable assumptions give different results (e.g. ln(2x) = ln(2) + ln(x) if x is assumed positive) Functions: -Hundreds of flexible functions: trigonometry, exponents and logarithms, combinatorics, geometry, calculus, statistics, finance, time and date, etc. -Can easily be created, edit and saved to a standard XML file Units: -Supports all SI units and prefixes (including binary), as well as imperial and other unit systems -Automatic conversion: ft + yd + m = 2.2192 m -Explicit conversion: 5 m/s to mi/h = 11.18 miles/hour -Smart conversion: automatically converts 5 kg*m/s^2 to 5 N -Currency conversion with retrieval of daily exchange rates -Different name forms: abbreviation, singular, plural (m, meter, meters) -Can easily be created, edited and saved to a standard XML file Variables and constants: -Basic constants: pi, e, etc. -Lots of physical constants (with or without units) and properties of chemical element -CSV file import and export -Can easily be created, edited and saved to a standard XML file -Flexible - may contain simple numbers, units, or whole expressions -Data sets with objects and associated properties in database-like structure Plotting: -Uses Gnuplot -Can plot functions or data (matrices and vectors) -Ability to save plot to PNG image, postscript, etc. -Several customization options and more... The manual includes a complete list of included functions, units, and variables, and some examples. User Interface Graphical user interfaces implemented using GTK or Qt Flexible expression entry with customizable completion, hints, and continious display of parsed expression Optional calculate-as-you-type mode (GTK) Small and ... not so small mode (GTK) Calculation history which allows the user to access the text and value of and apply operations to previous expressions and result Optional traditional calculator keypad, with quick access to most features, and a programming mode Practical menus give fast access to all advanced features Customizable meta modes for quickly switching between different settings (GTK) Dialogs for management of and easy access to functions, variables and units (with quick conversion) User friendly dialogs for functions, with description and entries for arguments Create/edit functions, variables and units Easy editing of matrices and vectors Various tools for fast conversion between number bases, floating point conversion, calendar conversion, and percentage calculation (GTK), and a period table (GTK) Convenient interface to gnuplot Configurable keyboard shortcuts (GTK) Additional text based interface with full functionality and more...           This download is for the Windows portable version (very bottom of page). If you need the Linux portable version, download here. Click here to visit the author's website. Continue below for the main download link. |
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| Downloads | Views | Developer | Last Update | Version | Size | Type | Rank | |
| 65 | 501 | Qalculate! Project <img src="https://www.oldergeeks.com/downloads/gallery/thumbs/qalculate1_th.png"border="0"> | Apr 28, 2025 - 12:28 | 5.5.2 | 60.73MB | ZIP |  , out of 2 Votes. |
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| Qalculate! v5.5.2 | ||||||||
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