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
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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 i : r - 2 * i :> tATAn cr ? j r =5-^ Because the calculator is in exact mode, the command produces the following 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 LN(a^+1 )+HTRN(£:i : -»-NUMiRNSi: 1» ____________a.7i6S8663i3aE Page 5-10 Working with expressions
exact result. Obtain an approximate result.