EMDD.KtExpressions

a library for basic math expression manipulations

Requirements

.Net 5.0.102 sdk or greater

Nuget Package Usage

https://www.nuget.org/packages/EMDD.KtExpressions/

<PackageReference Include="EMDD.KtExpressions" Version="*.*.*" />

Motivation

• Yeah basically, I needed some mathematical expression implementations for my masters thesis in civil engineering which requires the manipulation of piecewise function. I was unable to find one that fits my needs so I had to build one from scratch.

Usage

EMDD.KtExpressions.Expression.Expression can be instantiated by supplying array of Term, array of KtPolynomials, array of numbers (double, int types etc), with the option to imclude the limit of the functions

Let's say you want to instantiate a function

it can be written as

//Create the equations first
var eq1 = EMDD.KtPolynomials.KtPolynomial.Create(2, 3);
var eq2 = EMDD.KtPolynomials.KtPolynomial.Create(3, 0, -2);

//create the limits
var lim1= new EMDD.KtExpressions.Limits.Limit(-50, -30);
var lim2= new EMDD.KtExpressions.Limits.Limit(0, 50);

//instantiate the Expression by providing equation parameters in valuetuple form
var expression = new EMDD.KtExpressions.Expression.Expression((eq1, lim1), (eq2, lim2));

KtPolynomials Methods

Basic Math Ops

• addition, subtraction, multiplications with other expressions, multiplications with constants, division by other expressions, and division by constants

Other Functionalities

• representation fractions of expressions
• simplification of basic expression
• representation of piece-wise functions