Please Explain this code

clc;
clear all;
close all;
x=1:1:10;
y=5:5:50;
z=x.*y;
fprintf('%i\t',x);
fprintf('\n');
fprintf('%i\t',y);
fprintf('\n');
fprintf('%i\t',z);

Answer 1

[Sriram Tadavarty]

Hi Caitlin,

Here is the annotated code with the explanation:

clc;       % Clear command window
clear all; % Clears all the variables in the memory
close all; % Closes all the opened figures
x=1:1:10;  % Defines a variable x from 1 to 10, in steps of 1 (i.e. 1, 2, 3, ..., 9, 10)
y=5:5:50;  % Defines a variable y from 5 to 50, in steps of 5 (i.e. 5, 10, 15, ..., 45, 50)
z=x.*y;    % Performs element wise matrix multiplication for x and y (i.e. (1*5), (2*10), (3*15), ..., (9*45), (10*50)), and assigns to z
fprintf('%i\t',x); % Prints the values in x with a tab spacing mentioned with \t
fprintf('\n');     % Prints a new line
fprintf('%i\t',y); % Prints the values in y with a tab spacing
fprintf('\n');     % Prints a new line
fprintf('%i\t',z); % Prints the values in z with a tab spacing

For more information, look at the clc, clear, close, frpintf and element wise multiplication.

Hope this helps.

Regards,

Sriram