public void AddDerivativeTest3()
{
// 2x + 3
var num1 = new Number(2);
var x = new Variable("x");
var mul1 = new Mul(num1, x);
var num2 = new Number(3);
var exp = new Add(mul1, num2);
var deriv = Differentiate(exp);
Assert.Equal("2 * 1", deriv.ToString());
num1.Value = 5;
Assert.Equal("(5 * x) + 3", exp.ToString());
Assert.Equal("2 * 1", deriv.ToString());
}
public void BinaryToStringTest()
{
var exp = new Add(new ComplexNumber(3, 2), new ComplexNumber(3, 2));
Assert.Equal("3+2i + 3+2i", exp.ToString());
}
public void DerivativeTest3()
{
// 2x + 3
Number num1 = new Number(2);
Variable x = new Variable("x");
Mul mul1 = new Mul(num1, x);
Number num2 = new Number(3);
IExpression exp = new Add(mul1, num2);
IExpression deriv = exp.Differentiate();
Assert.AreEqual("2 * 1", deriv.ToString());
num1.Value = 5;
Assert.AreEqual("(5 * x) + 3", exp.ToString());
Assert.AreEqual("2 * 1", deriv.ToString());
}
