Question

Problem1: (5 Points) Write a function with the header: function [A_Transp, errFlag] myMatrixChecker (A) that transposes a square matrix A. If A is not square, myMatrixChecker should return -1 for errFlag and A_Transp should be a matrix of zeros of the same size as A. The function should also write a message to the screen telling the user that the matrix is not square. If A is square, errFlag should be 0 and A_Transp should be the transpose of A. No message is reported.

Answer 1

Open MATLab ---> In Home tab ----> Click on New -----> Select function

paste the following code and save it by it's default name.

function [A_Transp,errFlag] = myMatrixChecker(A)
%Summary of this function goes here
% Detailed explanation goes here
B=size(A);%to find size
if B(1)==B(2)% to find whether it is square matrix or not
A_Transp = A'% for transpose
errFlag = 0
else
A_Trans=zeros(B)%to produce zeros matrix of input matrix size
errFlag = -1
disp('Given Matrix is not a Square Matrix')
end

end

---> In Home tab ----> Click on New -----> Select Script

paste the following code, save it and run it by keeping both function file and script file in same folder.

clear all
A = input('Enter input Matrix of any size:');%Asks for user input
myMatrixChecker(A);% calls function