bin(a)
This class wraps the java.lang.Integer.toBinaryString and java.lang.Long.toBinaryString methods,
which returns a string representation of the integer/long argument as an unsigned integer in base 2.
ceil(a)
Wraps java.lang.Math.ceil()
Returns the smallest (closest to negative infinity) double value that is greater
than or equal to the argument and is equal to a mathematical integer.