NAME
    rsearch - reverse search a matrix, list or association for a value

SYNOPSIS
    rsearch(x, val [,idx])

TYPES
    x		matrix, &matrix, list, &list, assoc, &assoc
    val		any, &any
    idx		int

    return	any

DESCRIPTION
    Reverse search the matrix, list or association x for the value
    val.  By default, the search starts at the end.  If idx is given,
    the reverse search starts at index indx.

    If the value is not found, this function returns nil.

EXAMPLE
    > lst = list(2,"three",4i)
    > rsearch(lst,"three")
	    1
    > rsearch(lst,"threes")
    > rsearch(lst, 4i, 4)
    > rsearch(lst, 4i, 1)
    > rsearch(lst, 4i, 3)
	    2

LIMITS
    none

LIBRARY
    none

SEE ALSO
    assoc, list, mat, search