**in Matlab: write a program as a function that returns the velocity with the parameters shown.

2.21 Manning's equation can be used to compute the velocity of water in a rectangular open channel, U=VS/ BH ) / n B+ 2H) where U = velocity (mis), S = channel slope, n = roughness coef- ficient, B = width (m), and H == depth (m). The following data are available for five channels: S 0.035 0.020 0.015 0.030 0.022 0.0001 0.0002 0.0010 0.0007 0.0003