static void Main()
{
var x = new Variable("x");
var y = new Variable("y");
Console.WriteLine("f(x,y) = (x + y) * Sin(x / 2)");
var expr = (x + y) * new Sin(x / 2);
Console.WriteLine("f(5, 3) = {0:F3}", expr.Compute(new Dictionary <string, double> {
["x"] = 5, ["y"] = 3
}));
Console.WriteLine("f(pi/6, 7) = {0:F3}", expr.Compute(new Dictionary <string, double> {
["x"] = PI / 6, ["y"] = 7
}));
expr = new Pow(new Tan(x / 2), 2 / 3) + new Cot(x / 2) * (1 / 3) / y;
Console.WriteLine("f(0,3) = {0:F3}", expr.Compute(new Dictionary <string, double> {
["x"] = 0, ["y"] = 3
}));
Console.WriteLine("f(7pi/3, 6) = {0:F3}", expr.Compute(new Dictionary <string, double> {
["x"] = PI / 3, ["y"] = 6
}));
Console.ReadKey();
}
public void IsConstantPow()
{
Constant const1 = 1;
var const2 = 2.0;
var res = new Pow(const1, const2);
Assert.AreEqual(true, res.IsConstant);
}
public void IsPolynom_Pow()
{
var var1 = new Variable("x");
var const1 = 4.0;
var res = new Pow(var1, const1).IsPolynom;
Assert.AreEqual(true, res);
}
public void PowIsPolynom2nonPol()
{
var const1 = new Arcsin("x");
var const2 = 2.0;
var res = new Pow(const1, const2).IsPolynom;
Assert.AreEqual(false, res);
}
public void PowIsPolynomPolPowerConst()
{
var const1 = new Variable("x");
var const2 = 1.0;
var res = new Pow(const1, const2).IsPolynom;
Assert.AreEqual(true, res);
}
public void PowIsPolynom2Const()
{
var const1 = new Constant(1);
var const2 = 1.0;
var res = new Pow(const1, const2).IsPolynom;
Assert.AreEqual(true, res);
}
public void Power2ConstantsTest()
{
var const1 = new Constant(4);
var const2 = 2.0;
var res = new Pow(const1, const2);
Assert.AreEqual(16, res.Compute(null));
}
public void PowerVariableConstantTest()
{
var var1 = new Variable("x");
var var2 = 2.0;
var res = new Pow(var1, var2);
Assert.AreEqual(16, res.Compute(new Dictionary <string, double>()
{
["x"] = 4
}));
}