Scalars Use the following variables to define the scalar quantities below: L, g, H, rho, w, N, M, dx, dt L-18 m g 9.81 m s-2 H 0.75 m 1000 kg m-3 W-1.5 m N 128 Vectors /1D Arrays Use the variables x, theta and t to define the following arrays: Matrices /2D Arrays Initialize variables u, h, eta and phi with zeros of size (N+1) x M and populate the first column using the following formulae 1818