<cat>libraryfunc</cat> # Not a function This is NOT a function, it's a variable containing the mathematical constant pi. (`3.1415926535898`) See also: <page>Trigonometry</page> <example> <code> print( math.sin( math.pi ) ) </code> <output> 0⤶ 1.2246467991474e-16⤶ </output> </example>