[url=http://mfcosmos.com/archives/13062]MATHS AND PHYSICS... WORLD[/url][br][color=#1551b5]The interactive application deals with harmonic wave's phase in 4 screens. The screens are divided initially into 2 containing cases the wave has initial phase or not. Each of the previous split into two sub-screens including the cases propagation direction of the wave...[/color]