Excel
has a pre-made square root function. Just as
with a pocket calculator the function is used
so frequently it is given its own shortcut. This
function is written SQRT(number) where a number
or to say it mathematically an argument must
be put inside the parentheses. The function will
accept a cell coordinate or a pure number as
an argument. For example SQRT(B3) is acceptable
even is there is nothing in cell B3 yet. You
will know when you have written (called) the
function incorrectly, as this will appear.
Excel
has a built in system that checks for errors
in your formula. If Excel spots a mistake
it will notify you of an general error. This
usually occurs because you have not written the
argument correctly or did not complete the parentheses.