Most people just say "pound," but you can also just say "hashtag" (thanks to Twitter,) but you can always just say number sign.
An unknown number represented by a letter or symbol is a variable.
An unknown number is a variable and its symbol is usually in the form of a letter such as x or y
variable
The symbol for square root is called the radical symbol, which is represented as "√". It is used to indicate the square root of a number, meaning a value that, when multiplied by itself, gives the original number. For example, √4 equals 2 because 2 × 2 = 4.
The symbol for number is #
An unknown number represented by a letter or symbol is a variable.
it is called the power
year
It is called a variable
An unknown number is a variable and its symbol is usually in the form of a letter such as x or y
formula
No, it's a symbol called a digit.
algebraic expression
The number placed below an element's symbol in a chemical formula is called a subscript. Subscripts indicate the number of atoms of that element in a molecule.
The name of the symbol is "pound sign" or "number sign". It is also known as an "octothorpe" or "hash symbol".
A variable
variable