∞
_ _ 3 3
sign or symbol sign or symbol
The symbol for a a square root sign is: √
This can be called * A Plus sign * An Adding sign
"never-ending number" is ambiguous. You could either mean an infinite number, or an irrational number. For infinite numbers, you could use the Hebrew letter Aleph - which is used to represent the cardinal numbers of infinite sets of finite numbers. For irrational numbers, as far as I know there is no commonly accepted symbol to represent them.
The name of the symbol is "pound sign" or "number sign". It is also known as an "octothorpe" or "hash symbol".
sign
sideways 8 this is not what its called this is what it looks like
The symbol for no change is an equal sign (=).
The Pound Sign Is This £
No, the percentage sign is a symbol.
it is the equal sign = with the symbol ~ over it