Symbols:F

Hexadecimal
$$\mathrm{F}$$ or $$\mathrm{f}$$

The hexadecimal digit $$15$$.

Its LaTeX code is \mathrm{F} or \mathrm{f}.

Function
$$f \left({x}\right)$$

The letter $$f$$, along with $$g$$ and $$h$$, is frequently used to denote a general mapping or function, in particular a real function.

The LaTeX code for $$f \left({x}\right)$$ is f \left({x}\right).