Want the answer in MATLAB code script.

Write a function calcrectarea that will calculate and return the area of a rectangle. Pass the length and width to the function as input arguments. Renewable energy sources such as biomass are gaining increasing attention. Biomass energy units include megawatt hours (MWh) and gigajoules (GJ). One MWh is equivalent to 3.6 GJ. For example, one cubic meter of wood chips produces 1 MWh