HP 39gII - Solving systems of linear equations

190 Lists
Example:
In Home, generate a series of squares from 23 to 27.
b 7 3
AAjo
A
Ao23o
27o1mE
ΠLIST Calculates the product of all elements in list.
ΠLIST(list)
Example:
ΠLIST({2,3,4}) returns 24.
POS Returns the position of an element within a list. The
element can be a value, a variable, or an expression. If
there is more than one instance of the element, the
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)
Example:
REVERSE({1,2,3}) returns {3,2,1}
SIZE Calculates the number of elements in a list.
SIZE(list)
Also works with matrices.
Example:
SIZE({1,2,3}) returns 3