# Fourier; Free; Freeze - HP 48gII Advanced User's Reference Manual

Graphing calculator.

FOR( counter x
FOR takes x
creates the local variable counter as a loop counter. Next, the loop clause is executed; counter
can be referenced or have its value changed within the loop clause. STEP takes x
increments counter by that value. If the argument of STEP is an algebraic expression or a
name, it is automatically evaluated to a number.
The increment value can be positive or negative. If the increment is positive, the loop is
executed again when counter is less than or equal to x
loop is executed when counter is greater than or equal to x
When the loop is exited, counter is purged.
Access:
Input/Output:
Note:
It should be noted that FOR inputs may also be integers (object type 28) and binary integers
(type 10). FOR actually runs fastest on binary integers, runs "normally" on reals and slightly
slower on integers.
NEXT, START, STEP

## FOURIER

CAS:
Return the n
FP
Type:
Function
Description: Fractional Part Function: Returns the fractional part of the argument.
The result has the same sign as the argument.
Access:
Flags:
Numerical Results (–3)
Input/Output:
IP

### FREE

Type:
Command
Description: This command, a carry-over from the HP 48GX for handling plug-in RAM cards, should not be
used.

### FREEZE

Type:
Command
Description: Freeze Display Command: Freezes the part of the display specified by n
updated until a key is pressed.
3-68 Full Command and Function Reference
x
)loop-clause, STEP (x
start
finish
and x
as the beginning and ending values for the loop counter, then
start
finish
BRANCH FOR
Level 2/
FOR x
start
NEXT
FOR x
start
STEP
STEP
coefficient of a complex Fourier series expansion.
th
L
REAL
FP
Level 1/Argument 1
x
x_unit
'symb'
)
increment
. If the increment is negative, the
finish
( °is the left-shift of the Nkey).
Level 1
x
finish
x
finish
x
increment
'symb
'
increment
( ´ is the left-shift of the Pkey).
increment
.
finish
Level 1/Item 1
Level 1/Item 1
y
y_unit
'FP(symb)'
, so that it is not
display area
and