MATLAB/Cookbook/Matrix (array) algebra

clc;clear all;close all; %Always begin with these statements fprintf('This code is divided into 4 sections \n' ); %*fprintf* prints to command window. /n makes new line. sectionNumber= input('Enter case you wish to run: '); %*input* prompts user to input an integer (1, 2, 3, ...) %Define your matrix A = [1 -1; ... -1 1] %The three dots continues the command. Equivalent to A [1,-1;-1,1] %Define your solutions B = [.1; .2] switch(sectionNumber) %*switch* executes only case you select % each case should run as stand-alone code case 1 %Multiplication fprintf('What is A*B?\n') A*B case 2 %Divison fprintf('What is A/B?\n') B\A case 3 %Inverse fprintf('What is Inverse AB?\n') Solution1 = A\B %or fprintf('or\n') Solution2 = inv(A)*B case 4 %Transpose fprintf('What is transposed A and B?\n') A.' B.' %or fprintf('or\n') TransposeA2 = transpose(A) TransposeB2 = transpose(B) end % this ends *case* fprintf('To run this code again type *matrixAlgebra*\n' ); %(if you so name your file)