170
Using mathematical functions
numer
Simplified Numerator. For the integers
a
and
b
, returns
the numerator of the fraction a/b after simplification.
numer
(a/b)
Example:
numer
(10/12) returns 5.
denom
Simplified Denominator. For the integers
a
and
b
, returns
the denominator of the fraction a/b after simplification.
denom
(a/b)
Example:
denom
(10/12) returns 6.
List functions
These functions work on list data. See the chapter
Lists
for
details.
Loop functions
The loop functions display a result after evaluating an
expression a given number of times.
ITERATE
Repeatedly for
#times
evaluates an
expression
in terms of
variable
. The value for
variable
is updated each time,
starting with
initialvalue.
ITERATE(
expression
,
variable
,
initialvalue
,
#times
)
Example:
ITERATE(X
2
,X,2,3)
returns
256
Σ
Summation. Finds the sum of
expression
with respect to
variable
from
initialvalue
to
finalvalue.
Σ
(
expression, variable, initialvalue, finalvalue
)
Example:
Σ
(x
2
,x,1,5)
returns 55.
Summary of Contents for 39gII
Page 1: ...HP 39gII graphing calculator user s guide Edition1 Part Number NW249 90001 ...
Page 2: ...Printing History Edition 1 November 201 1 ...
Page 32: ...22 Getting started ...
Page 58: ...48 Apps and their views ...
Page 70: ...60 Function app ...
Page 80: ...70 Solve app ...
Page 136: ...126 Polar app ...
Page 140: ...130 Sequence app ...
Page 148: ...138 Finance app ...
Page 152: ...142 Linear Solver app ...
Page 218: ...208 Matrices ...
Page 226: ...216 Notes and Info ...
Page 238: ...228 Variables and memory management ...
Page 318: ...308 Programming ...
Page 340: ...330 Reference information ...
Page 346: ...vi Product Regulatory Information ...