Question

Note: Present results using fprintf()and comment your code throughout.

1. Write a function that will compute the volume and surface area of a rectangular prism when provided with the object’s 3 numerical dimensions. In other words, the function should be given three inputs (height, width and depth) and return two outputs (the volume and surface area, in that order). Show the following test cases:
   1. height: 5   width:3    depth: 2
   2. heignt:1    width:8    depth:4
   3. height: 2   width:2    depth:10

The script should call the function 3 times and store the results of the three test cases in two row vectors called vol and sa.

Function specifications:

Input arguments: length, width, height - all scalars. (Order does not matter)

Output arguments: volume, area - both scalars. (Must be in this order)

OPTIONAL: If you prefer, you can write the function such that the input and output arguments are arrays; in that case, only one call to the function is necessary.

Answer 1

% Matlab function

function [volume, surface_area] = prism_volume_surfacearea(length, width, height)
% Matlab function prism_volume_surfacearea to calculate the volume and
% surface area of a rectangular prism for the given input length, width and height
% The input arguments can be scalars
% In case the input arguments is scalar, output values of volume and
% surface_area is also scalar
% calculate the volume of the rectangular prism
volume = length*width*height;
% calculate the surface area of the rectangular prism
surface_area = 2*(length * width + length * height+ width * height);
end
%end of function

% Matlab main script to calculate the volume and surface area of the
% rectangular prism for 3 different values of height, width and depth
% create row vectors of size for volume and surface_area
volume = zeros(1,3);
surface_area = zeros(1,3);
% define the height, width and depth variables
height = 5;
width = 3;
depth = 2;
% calculate and insert the volume and surface area into the corresponding vectors
[volume(1),surface_area(1)] = prism_volume_surfacearea(depth, width,height);
height = 1;
width = 8;
depth = 4;
[volume(2),surface_area(2)] = prism_volume_surfacearea(depth, width,height);
height = 2;
width = 2;
depth = 10;
[volume(3),surface_area(3)] = prism_volume_surfacearea(depth, width,height);
% loop to display the volume and surface area from the vectors
fprintf('%20s%20s\n','Volume','Surface Area');
for i=1:length(volume)
fprintf('%20.2f%20.2f\n',volume(i),surface_area(i));
end
%end of script

Output: