...
a = nil # version 2
for i = 1 to count(b) do # version 2
a = a & [sin(b[i])] # version 2
end for # version 2
This shows that the types of the elements in the input lists are not restricted – a list can contain many different data types (e.g. [number, vector, geopoints]) and as long as the requested function is valid for each type, the correct result will be returned. If the requested operation is illegal for that element (e.g. sin(['hello'])) then it will fail on that element. See the descriptions of these functions for the relevant data types.
number
...
count(
...
list
...
)
Returns the number of elements in a list.
list
...
list(
...
any,any,...)
Returns a list built from its arguments.
list
...
sort(
...
list
...
)
Sorts a list in ascending order.
list
...
sort(
...
list,string
...
)
Sorts a list given a comparison, expressed as a string : Ascending "<", descending ">"; you may specify the sorting criterium in a comparison function :
...
function
...
compare(a,b)
...
...
return
...
a
...
<
...
b
...
...
end
...
compare
...
...
numbers
...
=
...
[1,5,3,9,0,4,6,7,8,2]
...
...
print
...
(sort(numbers,
...
">"))
...
#
...
prints
...
in
...
decreasing
...
order
...
...
print
...
(sort(numbers,
...
"compare"))
...
#
...
prints
...
in
...
ascending
...
order
Note that it is not valid to sort a list which contains more than one type of data element.
list sort_indices( list ) list sort_indices( list,string )
...