## 9.4 Low Level Arithmetic Builtins

The low level builtins (like
+/3,
sin/2 etc.)
which are used to evaluate
the predefined arithmetic functions can also be called directly,
but this is not recommended for portability reasons.
Moreover, there is no need to use them directly since the ECL^{i}PS^{e} compiler
will transform all arithmetic expressions into calls to the corresponding
low level builtins.