How to transform a wile loop into a for loop

Hi

I have been working with while and for loops, and I want to know how to transpose or change a while loop to a for loop and vise versa

I need your help with this.

Thank you

[James Tursa]

What have you tried so far? What problems are you having with this homework assignment?

[Danny Maefengea]

This is what I have done sir.

%while loop
x=0
while x<20
    disp(x);
    x = x+2;
end
 
%%for loop 
x = 0
for x=0;x<20;x=x+2
    disp(x)
end
    

Answer 1

[Pulkit Goel]

In MATLAB, fo create a for loop, instead of specifying x=x+2 like you do in C, you write the skip as 0:2:20. This would make your code look like:

x=0;
for x=0:2:20
    disp(x);
end

For creating while loop, it is similar to what you mentioned, as we have in C:

x=0;
while x<=20
    disp(x);
    x=x+2;
end

The equality sign is required in while as the condition is evaluated at start and logic will fail to enter the loop when you have updated the value of x to 20, but are yet to print it.

[Danny Maefengea]

Thanks

Answer 2

[Anish Walia]

The for loop for your while loop would be

% 0:2:20 will produce a matrix starting at 0, with increment step of 2 in each iteration and will go till 20
for x=0:2:20
    disp(x);
end

For more information on loops refer to the following:

https://www.mathworks.com/help/matlab/matlab_prog/loop-control-statements.html

[Danny Maefengea]

Thanks