Showing 45 open source projects for "double-entry"

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  • 1
    Minsky

    Minsky

    System dynamics program with additional features for economics

    ...Models are defined using flowcharts on a drawing canvas (as are Matlab's Simulink, Vensim, Stella, etc). Minsky's unique feature is the "Godley Table", which uses double entry bookkeeping to generate stock-flow consistent models of financial flows. Minsky is good for demonstrating mathematics too, with the most "math-like" interface in system dynamics. Sign up to Minsky's Patreon page (for as little as $1 a month) at https://www.patreon.com/Ravelation/. This creates a user community, which SourceForge doesn't facilitate.
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    Downloads: 154 This Week
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  • 2
    Foreval

    Foreval

    Foreval is parser , compiler , evaluator of mathematical expressions

    Foreval is compiler of mathematical expressions (formulas) (directly to x86-32 CPU/FPU/SSE instructions) given as string at run-time. Present as "dll" library and Delphi sources. Can be compiled in FPC (Lazarus). Can be direct connection to the program (without dll). Сurrent version ( v. 9.1.1.395B): Examples for Delphi, Lazarus , GCC (Codeblock), MSVC. Demo: Fractals Julia; Visualizing of functions of complex variable - complex domain coloring , graph plotting & finding...
    Downloads: 2 This Week
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  • 3
    wxChaos

    wxChaos

    An interactive fractal explorer

    ...It includes classic complex-plane fractals, chaotic maps, numerical systems, and vector constructions. The collection ranges from Mandelbrot and Julia sets to Newton basins, the Burning Ship, the Henon and Logistic maps, the double pendulum, Sierpinski constructions, and the Koch snowflake.
    Downloads: 12 This Week
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  • 4
    QInterference

    QInterference

    Double slit experiment visualization tool loving multicore processors

    QInterference can visualize batch of double slit experiments. It can also solve it in radial as well as Cartesian coordinates and moreover it can simulate functionality the phase-array radar with the main-bundle deflection.
    Downloads: 0 This Week
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  • 5
    forevalz

    forevalz

    ForevalZ - compiler of mathematical expressions with complex numbers

    ForevalZ - compiler of mathematical expressions(formulas) with support of complex numbers (directly to CPU/FPU x86-32 comand) given as string at 'run-time'. (dll library and delphi component). Can be compiled in FPC (Lazarus). Examples for Delphi (2009), FPC , C++(Builder(2009), MSVC(2010), GCC (Codeblock)), VB.NET, VB6, FreeBasic. Demo: Fractals Julia; Visualizing of functions of complex variable - complex domain coloring . (math parser, math expression parser, evaluate formula,...
    Downloads: 0 This Week
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  • 6
    RootGraph

    RootGraph

    Graphic interface with algorithms to compute line and root graphs

    Simple and intuitive graphic interface for graph theory with algorithms to compute line and root graphs of a given graph. - Double click to add a new node. - Left click a node and drag to change the position of the node. - Select a node with left click and add an edge with the next node you select. - Right click a node to delete it. Made in C++ using the wxWidgets library.
    Downloads: 0 This Week
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  • 7
    This project will be a project that will be used by Speleologist (cavers) to help aid in the mapping of the underground world. It will be simple at first.. only allowing the entry of survey (dist/azmith/V-angle) and give back a line plot..
    Downloads: 0 This Week
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  • 8

    SparthMP

    SparthMP is an ANSI-C math library for Multi-Precision calculations

    SparthMP is an ANSI-C math library for Multi-Precision calculations, i.e. beyond float/double domain. It supports regulated accuracy of calculations. For algorithm design with this library you should have an understanding of rounding errors in math.
    Downloads: 0 This Week
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  • 9

    Calcex Math Parser

    Mathematical expression parser and evaluator for .NET

    Moved to https://github.com/alxnull/calcex Calcex is a simple math parser for .NET to evaluate mathematical expressions which is developed in C#. It supports many common mathematical operations and functions and allows the user to add custom functions and variables. It is possible to evaluate double or decimal values for high precision. Calcex also includes functions for converting numbers from decimal to binary or other bases. The project includes a simple calculator and decimal-binary converter to show the functions of Calcex.
    Downloads: 0 This Week
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  • 10
    Javaluator

    Javaluator

    A java infix evaluator based on "Shunting Yard" algorithm.

    Evaluate an arithmetic expression is as simple as: Double result = new DoubleEvaluator().evaluate("(e^3-1)*sin(pi/4)*ln(pi^2)"). But Javaluator provides you with much more ... Key features: - Functions support, including variable argument count. - Constants support: e, pi, etc ... - Variables support: Example sin(x) for x = pi/4. - Highly configurable: Reduce the built-in operator or function sets, define your own brackets
    Downloads: 0 This Week
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  • 11

    mep4j

    Math Expression Parser 4 Java

    ...Example: int num_variations = 100; int init_value = 10; MathParser mathParser = new MathParser(); mathParser.putVariable("x", init_value); mathParser.parse("2 + (7 - 5) * 3.14159 * pow(x, (12-10)) + sin(-3.141)"); for(int i = init_value; i < num_variations; ++i) { Double result = mathParser.execute(); mathParser.putVariable("x", i); }
    Downloads: 0 This Week
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  • 12
    einspline is a C library for the creation and evaluation of interpolating cubic basis splines (B-splines) in 1D, 2D, and 3D. It supports both uniform and nonuniform meshes, single and double precision, and real and complex data.
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    Downloads: 0 This Week
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  • 13
    SWire

    SWire

    A Stata plugin for connecting Stata with other software

    ...SWire can be interrogated on a local network and it accepts AJAX queries, thus enabling the development of web applications which provide the user with graphical user interfaces. For example, a web application running on a browser can interact with Stata on a local network; this application could be a data entry form or an automatic report. By providing a communication protocol, SWire makes it possible to connect Stata with many other applications for data exchange and basic interaction, thereby extending the capabilities of Stata. SWire requires Stata >=13.
    Downloads: 0 This Week
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  • 14

    libnova

    Celestial Mechanics Engine

    libnova is a general purpose, double precision, celestial mechanics, astrometry and astrodynamics library.
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    Downloads: 14 This Week
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  • 15
    DubCen Calculator

    DubCen Calculator

    DUBCEN IS A FREE & OPEN SOURCE BROWSER BASED CALCULATOR AND CONVERTER

    ...Our logo represents what we do. 2*C simply means 2*100 (C=100 in roman numerals). Hope you understand it now! Our logo represents the calculators and converters that DubCen has. DubCen name comes from Double+Century. We aim to offer 200 high quality calculators with DubCen. Right now, we are nowhere even close to that. Thus, we need you! We want our users to decide what should the other 150 calculators be. DubCen is built to provide users a memorable calculation experience.
    Downloads: 0 This Week
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  • 16
    DD-AVX

    DD-AVX

    DD-AVX: Library of high-precision operations accelerated by AVX

    DD-AVX: Library of high-precision operations accelerated by AVX. author's page http://www.slis.tsukuba.ac.jp/~s1530534/index.html e-mail hishinuma@slis.tsukuba.ac.jp Double-Double (DD) precision operations are used to reduce rounding errors and improve the convergence of Krylov subspace methods. This library has Double-Double precision operations accelerated by AVX and AVX2. AVX and AVX2 are intel SIMD instructions. They operate four double precision operation simultaneously. This library needs to merge "Lis" for DD precision iterative solvers. ...
    Downloads: 0 This Week
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  • 17

    physicsmata

    API for all possible cellular automata that work same at all angles

    ...Its parameters are sums of screen brightness (n color dimensions are optional) at concentric circles around each point, efficiently costing only the perimeter of those circles (instead of the area) because of the tree of squares. You can create any function, or to get started try the visual function editor where each click changes if a column is sine/sigmoid/half/double/exp/etc or which of the 0, 1, or 2 columns to the left are its params. Every click changes the patterns of waves seen on the left, which run that function you visually built at each point.
    Downloads: 1 This Week
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  • 18

    Template Code Set for JModelica

    This is a template Python code set to use JModelica easily.

    ...The template includes a sample model definition file (opt_definition.mop) and a .bat file (run_me.bat) to start its calculation. After download the template, immediately you can run JModelica by only double-clicking run_me.bat file, and obtain the optimization result. Please go to the page given below for the information of how to start to use this and its details.
    Downloads: 0 This Week
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  • 19

    LightSpMV

    lightweight GPU-based sparse matrix-vector multiplication (SpMV)

    ...Performance evaluation reveals that on a single Tesla K40c GPU, LightSpMV is superior to both CUSP and cuSPARSE, with a speedup of up to 2.60 and 2.63 over CUSP, and up to 1.93 and 1.79 over cuSPARSE for single and double precision, respectively.
    Downloads: 1 This Week
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  • 20

    GADfit

    Global nonlinear optimization with automatic differentiation

    ...The model curves (fitting functions) can be of essentially arbitrary complexity. This includes any nonlinear combination of elementary and special functions, single and/or double integrals, and any control flow statement allowed by the programming language. See the latest user guide under Files.
    Downloads: 0 This Week
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  • 21
    ILNumerics.Net
    math lib for .NET. n-dim arrays, complex numbers, linear algebra, FFT, sorting, cells- and logical arrays as well as 3D plotting classes help developing algorithms on every platform supporting .NET. Sources from SVN, binaries: http://ilnumerics.net
    Downloads: 0 This Week
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  • 22

    TIDES

    Taylor series Integrator for Differential Equations

    Taylor series Integrator for Differential EquationS. This software is developed by Profs. A. Abad, R. Barrio, F. Blesa and M. Rodriguez, (GME, University of Zaragoza, Spain). It consists on a C (Fortran) library, libTIDES, and a Mathematica package, MathTIDES. (MathTIDES requires Mathematica version >= 7.0) . Basic references: * A. Abad, R. Barrio, F. Blesa, M. Rodriguez, 2012. Algorithm 924: TIDES, a Taylor series Integrator for Differential EquationS, ACM TOMS. 39, no. 1, art. 5....
    Downloads: 0 This Week
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  • 23
    fzcal

    fzcal

    A calculator capable of complex arithmetics

    A command line calculator capable of complex arithmetics.
    Downloads: 0 This Week
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  • 24
    KeplerDB

    KeplerDB

    Timeseries databases management system

    KeplerDB is a temporal database to store time/value entries where the type of value could be integer, float/double, boolean and string. KeplerDB is dedicated to be scalable and to create clusters of server allowing the user to analyse and store massing amount of data to monitor systems like computers, clusters, building and captors or financial systems like markets and accounts. The user can use KeplerDB to make data analysis on enormous amount of data (statistics and modelling).
    Downloads: 0 This Week
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  • 25

    Average

    Command-line calculator of basic statistics.

    ...It works as a traditional Unix filter and can be used as part of those greatly useful chains of piped commands. It calculates average (arithmetic mean), standard deviation, median, total sum, minimum and maximum values present, and shows the number of processed numbers. Entry can by a text file (any column can be specified, default is the first) or directly in the terminal if Average is run without specifying a file -- in which case, input can be terminated by pressing Ctrl-D. It is possible to choose the output of a single statistic (just the value, no labels), instead of the fully detailed output (default).
    Downloads: 1 This Week
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