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

 calcrectarea.m

function area = calcrectarea(length, width)

% This function calculates the area of a rectangle

% Format of call: calcrectarea(length, width)

% Returns the area 

area = length * width;

end

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.