Help! Here I am busy doing some Laplace Transforms for my Maths 2 paper on Monday when suddenly to my surprise, an apparent "mistake" appears!!! GASP! It's got to do with the Heaviside "cover up" method. To work out a problem, you need to multiply the opposing side by the binomial and then substitute a value so as to make it zero. Now, that don't make sense to me. Fine, it works in calculations but what if you run the problem backwards, so to say? That will mean that you will need to overlook a division by zero? :yuck: Is my logic just wrong or is the point valid?