Module gears.math
Math module for gears
Functions
| subsets (set) | Return all subsets of a specific set. |
| cycle (t, i) | Make i cycle. |
| round (x) | Round a number to an integer. |
Functions
Methods- subsets (set)
-
Return all subsets of a specific set.
This function, giving a set, will return all subset it.
For example, if we consider a set with value { 10, 15, 34 },
it will return a table containing 2n set:
{ }, { 10 }, { 15 }, { 34 }, { 10, 15 }, { 10, 34 }, etc.
- set A set.
Returns:
-
A table with all subset.
- cycle (t, i)
-
Make i cycle.
- t A length. Must be greater than zero.
- i An absolute index to fit into #t.
Returns:
-
An integer in (1, t) or nil if t is less than or equal to zero.
- round (x)
-
Round a number to an integer.
- x number
Returns:
-
integer