Radicand
The horizontal bar in the
radical sign tells how much of the expression is the radicand. In this expression:
the bar stretches across the whole expression p  q. So this means we subtract q from p, then find the square root of the result.
The whole expression "pq" is the radicand.
If it has only covered the 'p' like this:
it would mean find the square root of p then subtract q from the result. Only "p" is the radicand.
The bar acts like parentheses, telling you how to group items and the order of calculation.
While you are here..
... I have a small favor to ask. Over the years we have used advertising to support the site so it can remain free for everyone.
However, advertising revenue is falling and I have always hated the ads. So, would you go to Patreon and become a patron of the site?
When we reach the goal I will remove all advertising from the site.
It only takes a minute and any amount would be greatly appreciated.
Thank you for considering it! – John Page
Become a patron of the site at patreon.com/mathopenref
Other exponents and roots topics
(C) 2011 Copyright Math Open Reference. All rights reserved
