(.) Period
That symbol is called the radical.
There is no specific symbol. The symbol for real numbers is R and that for rational numbers is Q so you could use R \ Q.
A variable
"xi" symbol in maths if used mostly in ven diogrammes and is in the top, right hand corner
A variablẹ
Column Names.
A slash. Example: \ or the famous /
Short phrases like names and titles cannot be protected by copyright. In extreme cases, names can be registered as trademarks, but they must be used in trade to qualify.
A cell address is a combination of the column heading and row heading. So the cell that is where column C and row 3 meet, is cell C3. Cells can also be given actual names that can be used to identify them. You can have a name like Total for a cell.
The symbol for Arogon is Ag, but it used to be A.Answ2. Argon has the symbol Ar, (and referring to the above, Silver (Argentum) has the symbol Ag.I don't know of an Arogon, but there used to be an Aragon in French and Spanish history. And commemorated in US place-names.
The first column in a two column proof is used for mathematical statements. The second column is used to state the law or property that makes that statement true - often referring to previous statements in the first column.
Not sure what you mean: if a name is not in the books and movies, it wouldn't qualify as a "Harry Potter name".
column
He hoped to qualify for the team. The scientist was trying to qualify the data.
the geologic column is used for identifying the layers in a rock sequence.
The fractionation column is used to separate components of a liquid by distillation.
Delete column