HP 39gs - Manual (Page 213)

Lists 16-9
position of the first occurrence is returned. A value of 0 is
returned if there is no occurrence of the specified element.
POS(list, element)
Example
POS ({3, 7, 12, 19},12) returns 3
REVERSE
Creates a list by reversing the order of the elements in a
list.
REVERSE(list)
SIZE
Calculates the number of elements in a list.
SIZE(list)
Also works with matrices.
ΣLIST
Calculates the sum of all elements in list.
ΣLIST(list)
Example
ΣLIST({2,3,4}) returns 9.
SORT
Sorts elements in ascending order.
SORT(list)
Finding statistical values for list elements
To find values such as the mean, median, maximum, and
minimum values of the elements in a list, use the Statistics
aplet.
Example In this example, use the Statistics aplet to find the mean,
median, maximum, and minimum values of the elements
in the list, L1.
1. Create L1 with values 88, 90, 89, 65, 70, and 89.
{ 88 90
89 65 70 89
}
L1
HP 39gs English.book Page 9 Wednesday, December 7, 2005 11:24 PM