public void CalculateTest2()
{
var functions = new FunctionCollection();
var func = new UserFunction("f", new IExpression[] { new Number(1) }, 1);
Assert.AreEqual(Math.Log(1), func.Calculate(functions));
}
public void CalculateTest1()
{
var functions = new FunctionCollection();
functions.Add(new UserFunction("f", new IExpression[] { new Variable("x") }, 1), new Ln(new Variable("x")));
var func = new UserFunction("f", new IExpression[] { new Number(1) }, 1);
Assert.AreEqual(Math.Log(1), func.Calculate(functions));
}
public void CalculateTest3()
{
var uf1 = new UserFunction("func", new[] { new Variable("x") }, 1);
var func = new DelegateExpression(p => (double)p.Parameters["x"] == 10 ? 0 : 1);
var funcs = new FunctionCollection();
funcs.Add(uf1, func);
var uf2 = new UserFunction("func", new[] { new Number(12) }, 1);
var result = uf2.Calculate(new ExpressionParameters(funcs));
Assert.AreEqual(1.0, result);
}
