public void SqrtDerivativeTest2()
{
var num = new Number(2);
var x = new Variable("x");
var mul = new Mul(num, x);
var exp = new Sqrt(mul);
var deriv = Differentiate(exp);
Assert.Equal("(2 * 1) / (2 * sqrt(2 * x))", deriv.ToString());
num.Value = 3;
Assert.Equal("sqrt(3 * x)", exp.ToString());
Assert.Equal("(2 * 1) / (2 * sqrt(2 * x))", deriv.ToString());
}
public void SqrtDerivativeTest2()
{
Number num = new Number(2);
Variable x = new Variable("x");
Mul mul = new Mul(num, x);
IExpression exp = new Sqrt(mul);
IExpression deriv = Differentiate(exp);
Assert.AreEqual("(2 * 1) / (2 * sqrt(2 * x))", deriv.ToString());
num.Value = 3;
Assert.AreEqual("sqrt(3 * x)", exp.ToString());
Assert.AreEqual("(2 * 1) / (2 * sqrt(2 * x))", deriv.ToString());
}