public void CloneTest()
{
var exp = new Derivative(null, null, new Sin(Variable.X), Variable.X, new Number(1));
var clone = exp.Clone();
Assert.Equal(exp, clone);
}
public void CloneTest()
{
var exp = new Derivative(new Sin(new Variable("x")), new Variable("x"), new Number(1));
var clone = exp.Clone();
Assert.Equal(exp, clone);
}