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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | \DOC el
\TYPE {el : (int -> * list -> *)}
\SYNOPSIS
Extracts a specified element from a list.
\DESCRIBE
{el i [x1;...;xn]} returns {xi}. Note that the elements are numbered starting
from {1}, not {0}.
\FAILURE
Fails with {el} if the integer argument is less than 1 or greater than the
length of the list.
\EXAMPLE
{
#el 3 [1;2;7;1];;
7 : int
}
\SEEALSO
hd, tl.
\ENDDOC
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