_Added in 1.9.0_

*$isbit(A,N)*

Returns 1 if the Nth bit in number A is turned on.

_Supports "Big Integers":https://en.wikipedia.org/wiki/Arbitrary-precision_arithmetic_

*Parameters*

table(ktable).
|*Parameter*|*Description*|
| A | The value to check. |
| N | The bit to check. |