As light goes through an interface, its speed changes. The solution for the behavior of light on one side of the interface or the other is the well-established standard wave equation. They can be ...

The theory of turbulence can be applied to any wave system, such as ocean waves: the numerical solution of these equations has been incorporated into global weather forecasting and climate change ...

Watch this video to learn about solving trigonometric equations. Let's remind ourselves of what the sine graph looks like so that we can see how many solutions we should be expecting: Therefore ...