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Paul Welter edited this page Mar 23, 2014 · 4 revisions

I'd like to announce the release of a little project I've been working on. I call it Calculator.NET. I started this project for a couple reasons. First, I was annoyed that Windows Vista doesn't come with a better calculator. Windows XP has Power Calculator, but that doesn't work on Vista. Next, I was reading a blog about DynCalc by Bart De Smet on how to do mathematical calculations. That gave me the starting point on how to create Calculator.NET.

As part of the project, I created a MathExpressions library that does the bulk of work. The library supports math expressions, functions unit conversion and variables. Below are some examples of using the library directly.

MathEvaluator eval = new MathEvaluator();
//basic math
double result = eval.Evaluate("(2 + 1) * (1 + 2)");
//calling a function
result = eval.Evaluate("sqrt(4)");
//evaluate trigonometric 
result = eval.Evaluate("cos(pi * 45 / 180.0)");
//convert inches to feet
result = eval.Evaluate("12 [in->ft]");
//use variable
result = eval.Evaluate("answer * 10");
//add variable
eval.Variables.Add("x", 10);            
result = eval.Evaluate("x * 10");

Calculator that evaluates math expressions.

Calculator.NET

Calculator.NET Features

  • Evaluate math expressions including grouping
  • Support trigonometry and other function
  • Common unit conversion of the following types
    • Length
    • Mass
    • Speed
    • Temperature
    • Time
    • Volume
  • Variable support including last answer
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