Command line example – HP 49g Graphing Calculator User Manual
Page 118
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This example uses the LIN coiumand to linearize a trigonometric
expression, and the EXPAND command to simplify the result. The
expression to linearize is:
sin(7ir)
Command line example
Before you start, ensure that the CAS Modes input form is set to the
default setting. See “Configuring the CAS” on page 5-2 for details.
1. Open the EXP&LN menu and select the
LIN conunand.
0(S)®®iiD
2. Enter the expression inside the
command’s brackets.
®0®®®
3. Apply the command to the expression.
5. Open the Algebra menu and place the
EXPAND conunand on the command line.
6. Retrieve the result from history.
RflP HVI HEK f;=
IHdHEl_____
LINO
RitD KV2 HEK R=
IHCHE?
linì
:
si
N';
it
*
x
4>
TOiiBUTiKCTiiiiiiaiiinmOTam
fifiD KVZ HEK fi=
ÌHdHEJ
CC«HpUX HC"dl
LIH
IB
j
BBI
4. Since the linearization returns a complex
result, the calculator prompts to switch to
complex mode. Accept the switch to
complex mode, and linearize the
expression.
RflO KVZ HEK C=
■ IHOHE?__________
: LIH(.SIt«TT.X))
l^'EXpaoir:'
RHD KVZ HEX C= 'K'
iHOHE]-
:LINCSINCTr>;=-i))
-[I'EXPi i .K'TT)|+^'EKPI>( i
'Xt-
EXPANDO
______________
RflD HVS HEH C=
ÌH0MEJ
: L.iMli-irSLIT'ftJJ
-[|€XP( i v'i'TT)]+|€XPi:-( i'X*-
EXPAND C — ( i ..^'2*EXP( i*X*...
*EXP<-':: i*X*
>4
_________________
Page 5-8
Working with expressions