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2.2.11.2.2.1 Function Tokens

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A function token represents a function in a formula expression. The Formula ABNF and Full Grammar Definition section in this specification defines the valid function tokens in a formula expression. The syntax for each function token is described in the Function Token Definitions section.

A function can specify a set of arguments used in the evaluation of the function token. The arguments of a function are additional parse tokens in the formula expression. The value returned by an evaluated function is an operand token.