creating a function to output the invert the numbers in an array

A = [ 1 2 3 4 5 6]

A = 6 5 4 3 2 1

when an array is entered, the function will display all elements on a row and all rows in inverted order.

I am having trouble creating a function to do the above for both vectors and matrices. I am to do this without using flip functions.

any help is appreciated ~

Alexandra

[Walter Roberson]

Please use better tags for this question; see http://www.mathworks.co.uk/matlabcentral/answers/43073-a-guide-to-tags

Answer 1

[Image Analyst]

This sounds like a homework problem ( http://www.mathworks.com/matlabcentral/answers/8626-how-do-i-get-help-on-homework-questions-on-matlab-answers). Hint: use a for loop with an increment of -1 to go backwards:

for row = lastRow: -1 : 1

same for the columns. To determine the last row, use the size() function. Use fprintf() or disp() to display. Also, type

doc colon

on the command line to learn how the colon operator works. Post back here with your attempt if you're still having trouble.

Answer 2

[Chris A]

A = [ 1 2 3 4 5 6]';
b=reshape(sortrows(horzcat(A, ((numel(A):-1:1)')), [2]),[],1);
b(1:6),

Answer 3

[Andrei Bobrov]

ii = numel(A):-1:1;
B = A(ii);

or

B = A(sort(1:numel(A),'descend'));