Performing substitutions, Performing substitutions -10, Substitutions – HP 49g Graphing Calculator User Manual
Page 120: Performing, Facto, Ihohej, Lnta^+i)+rtrhi:a, Ehtihei, 1 .l+fitrn<x)
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
4. Select the numerator component of the
expression.
5. Factorize the numerator.
FACTO
Performing
substitutions
Use tire SUBST command in the algebraic command list (0{ALG)) to
perfonn substitutions.
Tire following example substitutes the value 2 for x in
ln(x^ + 1) + atan(x)
1. From the Algebra menu, select the SUBST
command and place it on the command
line.
SU85TO_____________________
RAD HVZ HER C= 'H'
•^HOHEl_______
2. Use the command line editor to place the
arguments between the command’s
parentheses.
0®@©2©1®©0@1)®
000002
3. Apply the cominaiid.
RAD RV2 HER C= 'R'
•IHCiHE>____________
;uR<T an
i
:
r
-
2
*
i
:> tATAn
cr
?
j
r
=5-^
Because the calculator is in exact mode,
the command produces the following
exact result. Obtain an approximate result.
RSD KVZ HEK C= 'K'
iHOHEJ________
:
subst
I.
ln
(.
x
^+ i .I+
hti
=
i
N(X),:^
__________ LNta^+i)+RTRHi:a>
R№ XVS HEK C=
EHtiHEi______
:
subst
(
ln
I
x
^+1 .l+fiTRN<x).,:^
LN(a^+1 )+HTRN(£:i
: -»-NUMiRNSi: 1»
____________a.7i6S8663i3aE
Page 5-10
Working with expressions