Generally that's != or it could be <>.
A != B
A <> B
Both are "A is not equal to B" but the first is more common.
EDIT:
the symbols above are used in programming, but in more simple mathematics the symbol is a ( =/= ) where an equal symbol ( = ) is slashed.
Columbus
who invented equal to symbol
Put a slash through an equal sign.
An equal sign with a slash through it?
The inequality symbol for less than or equal to: ≤
Answer: = The symbol for Similarity is the Tilde, ~. It is NOT the equal symbol, =.
Columbus
The symbol for Equal Energy Ltd. in the NYSE is: EQU.
Not equal
who invented equal to symbol
Usually the symbol ≥ is used to represent the words "greater than or equal to." ____ The greater than symbol is > and the equal to sign is =. The less than symbol is <.
the symbol for less than is "<" while the symbol for less than or equal to is "<" with "_" underneath it.
it is the equal sign = with the symbol ~ over it
The symbol is >=
Put a slash through an equal sign.
An equal sign with a slash through it?
The inequality symbol for less than or equal to: ≤