I wanted to draw the working column for this method of finding square roots: http://youtu.be/UnshaiwljGY
Here is an image example of the process:
But I am unable to draw it because I am new to LaTeX tabulars, arrays and stuff.
Also, in the classic style of it, in the 2nd step, instead of underlining the number we have to guess is put in a circle. How do I circle a number?
Thank you in advance for your help.