Equation

Parse and calculate math expressions with constants and function.

A .NET (Mono compatible) C# implementation of Shunting-yard Algorithm

This solution supports:

• use of unary operations;
• prioritizations using parenthesis;
• easy to create new constant support (list below);
• easy to create new function support (list below);
• and, all done converting it to postfix format.

Functions supported:

• basic math operations [+-*/];
• sqrt;
• power;
• and, it is easy to implement others.

Constants supported:

• E;
• PI;
• RAD;
• and, it is easy to implement others.

Use:

  ExpressionCalculator calc = new ExpressionCalculator();
  double result;
  var expression = "3 + 4 * 2 / ( 1 - 5 ) ^ 2 ^ 3";
  if (calc.Solve(expression, out result))
  {
    Console.WriteLine("Final result: {0}", result);
  }

output: Final result: 3.0001220703125

ps.: it does not implement a full parenthesis check or any syntax analyze.

Proudly done using Visual Studio for Mac (preview 3)