public void LbToStringTest()
{
var exp = new Lb(new Number(5));
Assert.Equal("lb(5)", exp.ToString(commoonFormatter));
}
public void LbDerivativeTest2()
{
// lb(2x)
var num = new Number(2);
var x = new Variable("x");
var mul = new Mul(num, x);
var exp = new Lb(mul);
var deriv = Differentiate(exp);
Assert.Equal("(2 * 1) / (2 * x * ln(2))", deriv.ToString());
num.Value = 3;
Assert.Equal("lb(3 * x)", exp.ToString());
Assert.Equal("(2 * 1) / (2 * x * ln(2))", deriv.ToString());
}
