New, leading symbolic algebra library in .NET. Everything one would need.
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AngouriMath is an open source symbolic algebra library. That is, via AngouriMath, you can automatically solve equations, systems of equations, work with sets, differentiate, parse from string, and try many other features.
It is not a CAS, so you can use it in any your project by installing it from NuGet. AngouriMath can be used in calculators, algebra systems, educational/quiz apps, graphics, TeX rendering applications, etc.
It is free to use even in commercial projects. We work on it a lot, so your requests on issues are likely to be considered within a few hours.
Finally, if not sure about it, try it on .NET Fiddle!
Although most functions are convenient to use only from C#, there are some optimized for F#.
If you are new to AM, we suggest you checking out some samples instead of reading boring documentation. If you want to contribute, we would be happy to welcome you in our community.
For any questions, feel free to contact us via Discord.
Use as a simple calculator:
Entity expr = "1 + 2 * log(3, 9)";
Console.WriteLine(expr.EvalNumerical());Console.WriteLine("2 / 3 + sqrt(-16)".EvalNumerical());
>>> 2 / 3 + 4iConsole.WriteLine("(-2) ^ 3".EvalNumerical());Build expressions with variables and substitute them:
Entity expr = "2x + sin(x) / sin(2 ^ x)";
var subs = expr.Substitute("x", 0.3m);
Console.WriteLine(subs);Simplify complicated expressions:
Console.WriteLine("2x + x + 3 + (4 a * a^6) / a^3 / 5".Simplify());var expr = "1/2 + sin(pi / 4) + (sin(3x)2 + cos(3x)2)";
Console.WriteLine(expr.Simplify());Compiled functions work 15x+ faster
var x = MathS.Variable("x");
var expr = MathS.Sin(x) + MathS.Sqrt(x) / (MathS.Sqrt(x) + MathS.Cos(x)) + MathS.Pow(x, 3);
var func = expr.Compile(x);
Console.WriteLine(func.Substitute(3));var expr = "sin(x) + sqrt(x) / (sqrt(x) + cos(x)) + x3";
var compiled = expr.Compile("x");
Console.WriteLine(compiled.Substitute(4));Start with boolean algebra:
// Those are equal
Entity expr1 = "a and b or c";
Entity expr2 = "a & b | c";
// as well as those
Entity expr3 = "a -> b";
Entity expr3 = "a implies b";Entity expr = "a -> true";
Console.WriteLine(MathS.SolveBooleanTable(expr, "a"));>>> Matrix[2 x 1]
>>> False
>>> True
Next, solve some equations:
Console.WriteLine("x2 + x + a".SolveEquation("x"));Under developing now and forever (always available)
Entity expr = "(sin(x)2 - sin(x) + a)(b - x)((-3) * x + 2 + 3 * x ^ 2 + (x + (-3)) * x ^ 3)";
Console.WriteLine(expr.SolveEquation("x").Latexise());Try some inequalities:
Console.WriteLine("(x - 6)(x + 9) >= 0".Solve("x"));Systems of equations:
var system = MathS.Equations(
"x2 + y + a",
"y - 0.1x + b"
);
Console.WriteLine(system);
var solutions = system.Solve("x", "y");
Console.WriteLine(solutions);System:
Result:
var system = MathS.Equations(
"cos(x2 + 1)^2 + 3y",
"y * (-1) + 4cos(x2 + 1)"
);
Console.WriteLine(system.Latexise());
var solutions = system.Solve("x", "y");
Console.WriteLine(solutions);Find derivatives:
var func = "x2 + ln(cos(x) + 3) + 4x";
var derivative = func.Derive("x");
Console.WriteLine(derivative.Simplify());Find limits:
WriteLine("(a x2 + b x) / (e x - h x2 - 3)".Limit("x", "+oo").InnerSimplified);Find integrals:
WriteLine("x2 + a x".Integrate("x").InnerSimplified);There are four types of sets:
WriteLine("{ 1, 2 }".Latexise());
WriteLine("[3; +oo)".Latexise());
WriteLine("RR".Latexise());
WriteLine("{ x : x8 + a x < 0 }".Latexise());And there operators:
WriteLine(@"A \/ B".Latexise());
WriteLine(@"A /\ B".Latexise());
WriteLine(@"A \ B".Latexise());You can build LaTeX with AngouriMath:
var expr = "x ^ y + sqrt(x) + integral(sqrt(x) / a, x, 1) + derive(sqrt(x) / a, x, 1) + limit(sqrt(x) / a, x, +oo)";
Console.WriteLine(expr.Latexise());
>>> {x}^{y}+\sqrt{x}+\int \left[\frac{\sqrt{x}}{a}\right] dx+\frac{d\left[\frac{\sqrt{x}}{a}\right]}{dx}+\lim_{x\to \infty } \left[\frac{\sqrt{x}}{a}\right]You can parse Entity from string with
var expr = MathS.FromString("x + 2 + sqrt(x)");
Entity expr = "x + 2 + sqrt(x)";A few convenient features: x2 => x^2, a x => a * x, (...)2 => (...)^2, 2(...) => 2 * (...)
Not everything is supported directly from F#, so if something missing, you will need to address that functional from AngouriMath.
open Functions
open Operators
open FromToString
solve "x" "x + 2 = 0"
simplify (solve "x" "x2 + 2 a x + a2 = 0")
differentiate "x" "x2 + a x"
integrate "x" "x2 + e"
limit "x" "0" "sin(a x) / x"
"sin(a x) / x" &&& "x" --> 0
latex "x / e + alpha + sqrt(x) + integral(y + 3, y, 1)"We appreciate and welcome any contributors to AngouriMath. Current tasks can be tracked on this page.
Use pull requests to contribute to it. We also appreciate early pull requests so that we know what you are improving and can help you with something.
Documentation for contributors and developers is here.
The project is open source, but can be used in closed commercial projects. There is no restriction on it with the only requirement to keep the MIT license with all distributives of AngouriMath.