Non-Linear Wave Solver Function

This function is designed to receive inputs that are plotted on a graph that indicates the validity of wave theories as originally created by Le Mehaute (1976). Wave height, wave period, and water depth are entered as inputs that are calculated for a point having the x-axis equal (Water Depth/Wave Period^2) and the y-axis equal (Wave Height/Wave Period^2). The data points of the graph were taken from the Le Mehaute image that is included in the folder using the following image digitizer:
https://automeris.io/WebPlotDigitizer/.
The resulting plot is best viewed in full screen.