Best equations software for free download

ODEcalc for Windows: An Ordinary Differential Equation (ODE) Calculator! State your equation and boundary or initial value conditions and it solves your problem. Plots solution y and derivative ydot versus x.

Solves most Boundary Value Problems (BVP) and Initial Value Problems (IVP) for Nth order ODE. ODE may be non-linear, implicit, and any order. Source code included ... it's short! Great teaching tool! Helps students understand difference in BVP and IVP plus their importance in solving practical ODEs. ODE and algebraic system of equations may be solved using the methodology in this demo.
Hardcopy prints in Windows is now available.

This is a Fortran Calculus demo application.

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Powerful and extensible computer system for scientific and technical calculations. No matter if you are a school student or recognized scientist, Algebrus serves your needs. It is easy to use and interactive means of solving problem in various areas of expertise. Console based scientific calculator, 2D and 3D graphs plotter, differential, algebraic and polynomial equation solver, unit converter, physical constants reference, statistical analysis, data fitting, programming environment, and many more. Or just simple “evaluate-while-typing” calculator for your everyday arithmetics. If it doesn’t have something needed, you can use built-in integrated syntax-highlighted XPascal programming environment to create your own routines and libraries, define your own types and operators.

- Calculations and programming with vectors, matrices, complex numbers, fractions, quaternions, and polynomials
- 2D and 3D graphic plots and charts of functions and data
- Lines, scattered data, vector fields, contour plots, heights map, and meshes
- Parametric lines, histograms, error plots, spectrums, bar and pie charts
- Ordinary differential equations solving
- Linear algebraic equation system solving
- Statistical data analysis, data interpolation and fitting, Fourier and spectrum analysis
- Local and global multi-variable optimization
- Solving polynomial equations and finding polynomial extremums
- More than 250 built-in mathematical and analysis routines
- Data import-export to and from files, clipboard, serial ports
- More than 100 fundamental physical constants
- Calculation of different geometrical figures
- Converting to and from many dimensions of 20 different physical quantities
- Interactive user interface for function evaluation and graph plotting
- Spreadsheet editor
- Exporting graphics in standard raster and vector formats
- "Evaluate-while-typing" mode and different integer formats
- Syntax-highlighted XPascal editor, command console, expression editors

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ODEcalc for Windows: An Ordinary Differential Equation (ODE) Calculator! State your equation and boundary or initial value conditions and it solves your problem. Plots solution, y, and derivative, ydot, versus x. Solves most Boundary Value Problems (BVP) and Initial Value Problems (IVP) for Nth order ODE. ODE may be non-linear, implicit, and any order. Source code included ... it's short! Great teaching tool! Helps students understand difference in BVP and IVP plus their importance in solving practical ODEs. ODE and algebraic system of equations may be solved using the methodology in this demo.Hardcopy prints in Windows is now available.

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UltimaCalc is a scientific and mathematical calculator designed to occupy minimum screen area, making it immediately available for use. UltimaCalc can stay on top of other windows. Type a calculation as plain text, evaluate it, maybe edit it and re-calculate. Has a comprehensive context-sensitive help system.
Calculates to 38 digit precision. The display can be limited to just 8, 12 or 16 digits, and digits grouped for readability. Two 'scientific' view modes show numbers always in exponent format. The 'engineering' mode uses suffixes such as k (kilo) and M (mega). View results in hexadecimal and as ratios.
Functions available include logarithms to base 2, exp, two-argument inverse tangent; cube root (even of negative numbers); factorials, combinations, permutations, powers, modulus, GCD. Also floor and ceiling functions, absolute value, min, max, extract the fractional part of a number. Calculate the slope of a line given its end points. Even calculate definite integrals.
Define your own functions and constants, saved as a plain text file.
Find the date of Easter. Calculate future or past dates. Julian day numbers.
Calculate the mean, median and standard deviation of a sample and its population.
Create bar, line, pie charts. Add title, subtitle, labels. Adjust the layout, choose colours and hatching, save as an image.
Regression: Plot a scatter chart and regression line. Fit a polynomial to data. Analyse the effects of multiple variables on data. Absolute deviation fit minimises the effects of outlying values.
Plot functions: Specify starting and ending conditions and how variables change. Choose axis locations. Combine multiple plots. Save as an image.
Solve triangles: Given one side and two other facts, calculate the unknowns. View the result graphically.
Solve Simultaneous Linear Equations, and do Navigational calculations.
Log calculations to a text file, or copy and paste into other programs. Save specialised calculations with notes in data files.

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IO Software Equations is the advanced equations editor which combines the power of features with use simplicity.

Supporting over 700 symbols with more than a thousand possible combinations, an equation library, real time visual and LaTex editing, using its own scientific fonts, a fully configurable Speed Bar for fast symbol access, Equations! can be used as standalone or together with any applications supporting OLE, such as MS Office, OpenOffice, WordPerfect Office, Ability Office, etc.

Latex support with real time editing

Equations! has full LaTeX syntax support, allowing the input of 692 (and growing) tags. Latex is processed in real time, which means whatever users write in LaTeX can automatically be seen in visual editing area being the opposite is also true. In Equations! Latex and visual editing are closely interlinked and by combining both users have an unprecedented power and ease in writing scientific equations.

See documents created with Equations! anywhere

Equations! uses OLE technology to work with programs like MS Word, PowerPoint, Outlook, Open Office, Ability Office, Corel WordPerfect Office. This means that unlike some products users do not need to have Equations! installed in a computer in order to see any documents created with it. Users can send documents created with Equations! to friends and colleagues, you can take them to meetings, without worrying about if you will be able to see them or not.

Simple and Customizable UI

Equations! has combo boxes with both graphic representation of symbols and their latex code to faster and better identification. We created also a Speed Bar to quickly access the most commonly used symbols and put all features in plain sight, well organized, so that no confusion can be made. And case all this is not enough we also give users the choice of changing the symbols organization and labeling both in combos and speed bar to better suit their needs.

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Physics Cheat Sheet DEMO is an interactive physics package that helps students solve and visualize numerous physics equations. By checking their homework problems with Physics Cheat Sheet DEMO, students will better develop the mathematical thinking skills needed to succeed in physics. Physics Cheat Sheet DEMO was designed for use in high school and college physics courses.

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This screensaver contains the five elements of feng shui and depicts the Golden Arowana aka Dragon Fish. Its contents are 100% digital. Weighing in at 11.1MB, this screensaver can be cosidered a heavyweight.<br><br>The complete animation and background is designed by a self-taught 17-year old teenager. Instead of being grumpy, this arowana is the smiling type, reflecting the sunny disposition of its animator.<br><br>The expensive yet much sought after wild Malaysian Golden Arowana is facing extinction. The International Union for Conservation of Nature classified it as "endangered". Sometimes known as the "dragon fish", it may bring good health and good luck to its owners. This screen saver uses the same techniques as those employed in movies, TV and commercials, that is, computer generated imagery (CGI). Everything, you see in this screensaver is artificial and handmade. In other words, all the objects are just a bunch of complicated mathematical equations. The created movements are similar to programming a robot or a complex computer program.<br><br>This screensaver is used as a website promotion tool for our website.

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EBAS is a program for balancing chemical equations and stoichiometry calculations. Built in reagent database and concentration and ideal gas calculators simplify solving of all kinds of stoichiometry questions, both textbook and real life ones. To solve most questions it is enough to enter known information - program immediately balances equation, calculates molar masses of all substances, finds out limiting reagents and calculates stoichiometric amounts of all compunds involved. Concentration calculator helps in conversions between volume, mass (or number of moles) and concentrations, while ideal gas calculator helps to convert between mass/number of moles and volume of the gas for any temperature and pressure values.

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Rapid-Pi is an add-on for Microsoft Word (and other word processors) that will transform the way you enter mathematical formulae, equations and expressions into documents.

Rapid-Pi was designed with a single purpose in mind - to save you time when editing math in documents. Rapid-Pi's text-based input is a simply faster way to input math.

Most equation editing programs require you to click on toolbar buttons or go through menus in order to insert symbols and expressions. This process is inherently slow and painful. Even simple things like fractions take up too much time - you have to click on the fraction button, then click in the numerator, type the numerator, click in the denominator and type the denominator. Consider how much faster and easier it would be if you could simply type "1/4". That's exactly what you can do with Rapid-Pi.

NOTE: Rapid-Pi is an add-on for your existing word processor application (like Microsoft Word), not a stand-alone program. This means that you will continue to use your favorite word processor, inserting Rapid-Pi equations into your document whenever you need to enter math. Inserting a Rapid-Pi equation is easy - just click on the Rapid-Pi button on Microsoft Word's toolbar (toolbar button is currently only provided for Microsoft Word 2000 and later).

Rapid-Pi supports a large number of mathematical symbols and expressions, including all symbols supported by Microsoft Equation Editor.

If you don't know the keyword for a symbol, you just click on the appropriate toolbar button and Rapid-Pi will insert the text for you (for example, ".a" for lower-case alpha, ".int" for integral, etc). Soon, you'll probably find that you don't need to use the toolbar 90% of time. The toolbar will still be available for the occasions when you need to enter a symbol that you've never used before (or if you forget how to enter a rarely-used symbol).


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Powerful but easy-to-use graphing, curve fitting and calculating software. Graphs Cartesian (Y(x) and X(y)), polar and parametric functions, graphs of tables, equations (implicit functions), inequalities and slope fields. Up to 100 graphs in one window. Calculus features: regression analysis, obtaining zeroes and extrema of functions, intersections, derivatives, equations of tangents and normals, numerical integration, value tables, calculator. Lots of graph and coordinate plane parameters. You will be able to create high-quality graphs and copy them to your documents (as EMF or BMP). The program has printing capabilities, multi-document interface, customizable toolbars. Supports English, Dutch, French, German, Italian, Portuguese, Russian and Spanish interfaces.

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FindGraph is a comprehensive graphing, curve fitting, and digitizing tool. FindGraph offers 12 generic fits, including linear regression, logistic functions, fourier approximation, neural networks, B-splines and parametric curves least squares approximations, plus a library of over 300 industry-specific 2D formulas. FindGraph uses the Levenberg - Marquardt non-linear algorithm and the Simplex algorithm to fit data. A built-in Wizard helps to apply different curve fits to discover the model that best describes the data. Peak fitting features are included. The latest version includes a feature that applies Singular Spectrum Analysis (SSA) to reconstruct and to forecast data series. The software enables you to smooth, interpolate, apply FFT and Wavelet filters, subtract, differentiate, integrate, transform data and curves, and to apply Procrustes analysis. The program comes with 200 built-in common graphing 2D functions support for polar, Cartesian, and parametric equations. A built-in Wizard helps to digitize the data. The program supports OLE automation and can be built-in to other software applications.

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Scientific Letter is a scientific mailer. It allows the user to create scientific mail messages with complex equations. This modern and beautiful scientific software makes the exchange of complex ideas simple.

The scientific equation editor used in this software allows you to create complex letters, including complex scientific equations, at almost the same speed as typing standard text. The recipient of a mail message from Scientific Letter who is also using Scientific Letter, will see the message text with equations included in it as graphical parts. The recipient of a mail message from Scientific Letter by someone using another mailer will see the message text with equations included in it in LaTeX notation.

Mailer features:
+ Equations may be extremely complex
+ Highest quality scientific equation display
+ Beautiful design
+ Fine usability
+ Virus and Trojan protection
+ Lost data protection
+ Scientist-oriented address book
+ View incoming letters from Scientific Letter in their natural form
+ Letters can be read in Outlook Express and Linux mailers
+ Easy installation, adjustment and use
+ POP3 and SMTP mail protocols
+ Attachments
+ Free update on 1.xx.xx

Message editor features:
+ Highest quality scientific equation display
+ Toolbars
+ Keyboard-oriented ergonomic interface
+ Fast entry of equations and math symbols
+ Fast entry of Greek symbols
+ All kinds of brackets
+ All kinds of decorations
+ Big matrix with all kinds of brackets
+ Symbols of algebra and math analysis
+ Systems of equations
+ Math-friendly text and mouse cursor
+ Scrolling via keyboard and scrollbars
+ Fast speed auto-save
+ Export to LaTeX files (Regular License)
+ Copy to clipboard equation in a LaTeX notation

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DeadLine is an useful program, especially as an educational support, offering visual indications about the number of roots of an equation and a very precise estimation of those roots.

The freeware solves equations graphically and numerically. It displays the graph of the function and a list of the real roots of the equation. It also includes the option to evaluate the function and the first two derivatives, find extrema of the function and integrate numerically. You can even obtain the first two derivatives. Save the results provided by DeadLine and even create projects for future use.
While there is no flawless method for solving equations, the program combines the most successful methods in order to deliver you the right answer. And if you don't believe it's true, locate the roots on the graphic and convince yourself.

No more problems on getting your homework done. Meet the DeadLine.

DeadLine speaks English, German and Romanian.

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SciWriter 1.9 is an XML-based scientific editor that completely integrates writing mathematics and text in the same environment. The native document format is a subset of XHTML 1.1 and MathML 2.0 Presentation Markup.
Print Publishing: A SciWriter document can be exported to LaTeX and be published as PDF, Postscript or DVI.
Web Publishing: SciWriter documents can be published on the web as XHTML+MathML or as HTML with equations as images.

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