HP 38g Graphing Calculator User Manual
Page 56
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List Functions These functions are for list data stored in list variables. See
chapter 7, Using Lists.
Loop Functions The loop functions display a result after evaluating an
expression a given number of times.
ITERATE Repeatedly (the specified
dimes')
evaluates an
expression
in
terms of
variable.
The value for
variable
is updated each time,
starting with
initialvalue.
ITERATE
{
expression, variable
,
initialvalue, ^imes)
RECURSE
Provides a method of defining a sequence without using the
Symbolic view of the Sequence aplet.
RECURSE
{sequencename, term-n, terml, term2)
Example: RECURSE ( U , u (N-1) *N, 1 , 2 ) {{ST0^}}U1 (N)
This produces the factorial
ui(
1 ) = 1
U l ( 2 ) = 2
U 1 ( N ) = U 1 ( N - 1 ) * N
2
Summation. Finds the sum of
expression
with respect to
variable
from
initialvalue
to
finalvalue.
2 (
variable=initialvalue, finalvalue, expression
)
Example:2(C=l, 5,C^) returns55.
Matrix
These functions are for matrix data stored in matrix variables.
Functions
See chapter 8, Using Matrices.
2-20 Mathematical Calculations