Simplify​(System.​Int32)

using System;
using static AngouriMath.MathS;

var (x, y, a) = Var("x", "y", "a");
var expr = Sin(x) + y + a;
Console.WriteLine(expr);
Console.WriteLine(expr.Simplify());
Console.WriteLine("---------------------");
var expr1 = Sin(x - 3) / Tan(x - 3) + Sec(Sqrt(y)) * Cosec(Sqrt(y));
Console.WriteLine(expr1);
Console.WriteLine(expr1.Simplify());
Console.WriteLine("---------------------");
var expr2 = Sin(pi / 3) * 2;
Console.WriteLine(expr2);
Console.WriteLine(expr2.Simplify());
Console.WriteLine("---------------------");
var expr3 = (Pow(x, 3) + 3 * Sqr(x) * y + 3 * x * Sqr(y) + Pow(y, 3)) / (x + y);
Console.WriteLine(expr3);
Console.WriteLine(expr3.Simplify());
Console.WriteLine("---------------------");
var expr4 = Derivative(Sin(Sqr(x * y) + y * x), x);
Console.WriteLine(expr4);
Console.WriteLine(expr4.Simplify());

sin(x) + y + a
sin(x) + a + y
---------------------
sin(x - 3) / tan(x - 3) + sec(sqrt(y)) * csc(sqrt(y))
2 * csc(2 * sqrt(y)) + cos(x - 3)
---------------------
sin(pi / 3) * 2
sqrt(3)
---------------------
(x ^ 3 + 3 * x ^ 2 * y + 3 * x * y ^ 2 + y ^ 3) / (x + y)
x ^ 2 + 2 * x * y + y ^ 2
---------------------
derivative(sin((x * y) ^ 2 + y * x), x)
cos((x * y) ^ 2 + x * y) * (2 * x * y ^ 2 + y)