1. The problem statement, all variables and given/known data This is not a homework of any form, I am simply interested in proving a wave equation of the form f(x,t)=A•sin(k•x-ω•t) is a travelling wave, preferably an algebraic proof. Thanks heaps! 2. Relevant equations f(x,t)=A•sin(k•x-ω•t) 3. The attempt at a solution I was able to proof this by using graphs, but I need to know the algebra behind it.