{VERSION 6 0 "IBM INTEL NT" "6.0" } {USTYLETAB {CSTYLE "Maple Input" -1 0 "Courier" 0 1 255 0 0 1 0 1 0 0 1 0 0 0 0 1 }{CSTYLE "2D Math" -1 2 "Times" 0 1 0 0 0 0 0 0 2 0 0 0 0 0 0 1 }{CSTYLE "2D Comment" 2 18 "" 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 } {CSTYLE "2D Output" 2 20 "" 0 1 0 0 255 1 0 0 0 0 0 0 0 0 0 1 } {CSTYLE "Blue Emphasis" -1 256 "Times" 0 0 0 0 255 1 0 1 0 0 0 0 0 0 0 1 }{CSTYLE "Green Emphasis" -1 257 "Times" 1 12 0 128 0 1 0 1 0 0 0 0 0 0 0 1 }{CSTYLE "Maroon Emphasis" -1 258 "Times" 1 12 128 0 128 1 0 1 0 0 0 0 0 0 0 1 }{CSTYLE "Dark Red Emphasis" -1 259 "Times" 1 12 128 0 0 1 0 1 0 0 0 0 0 0 0 1 }{CSTYLE "" -1 260 "" 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 1 }{CSTYLE "Purple Emphasis" -1 261 "Times" 1 12 102 0 230 1 0 1 0 0 0 0 0 0 0 0 }{CSTYLE "Red Emphasis" -1 262 "Times" 1 12 255 0 0 1 0 1 0 0 0 0 0 0 0 0 }{CSTYLE "" -1 263 "" 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 }{PSTYLE "Normal" -1 0 1 {CSTYLE "" -1 -1 "Times" 1 12 0 0 0 1 2 2 2 2 2 2 1 1 1 1 }1 1 0 0 0 0 1 0 1 0 2 2 0 1 }{PSTYLE "Hea ding 1" -1 3 1 {CSTYLE "" -1 -1 "Times" 1 18 0 0 128 1 2 1 2 2 2 2 1 1 1 1 }1 1 0 0 8 4 3 0 3 0 2 2 0 1 }{PSTYLE "Heading 2" -1 4 1 {CSTYLE "" -1 -1 "Times" 1 14 128 0 0 1 2 1 2 2 2 2 1 1 1 1 }1 1 0 0 8 2 1 0 1 0 2 2 0 1 }{PSTYLE "Maple Output" -1 11 1 {CSTYLE "" -1 -1 " Times" 1 12 0 0 0 1 2 2 2 2 2 2 1 1 1 1 }3 3 0 0 0 0 1 0 1 0 2 2 0 1 } {PSTYLE "Normal" -1 256 1 {CSTYLE "" -1 -1 "Times" 1 12 0 0 0 1 2 2 2 2 2 2 1 1 1 1 }3 1 0 0 0 0 1 0 1 0 2 2 0 1 }{PSTYLE "" 0 257 1 {CSTYLE "" -1 -1 "" 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 }3 0 0 -1 -1 -1 0 0 0 0 0 0 -1 0 }} {SECT 0 {PARA 3 "" 0 "" {TEXT -1 25 "Manipulating power series" }} {PARA 0 "" 0 "" {TEXT -1 37 "by Peter Stone, Nanaimo, B.C., Canada" }} {PARA 0 "" 0 "" {TEXT -1 18 "Version: 4.2.2008" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 8 "restart;" }}} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}{SECT 1 {PARA 4 "" 0 " " {TEXT -1 48 "Introductory example of addition of power series" }} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}{PARA 0 "" 0 "" {TEXT -1 5 "Since" }}{PARA 256 "" 0 "" {TEXT -1 1 " " }{XPPEDIT 18 0 "ln(1+x ) = Sum((-1)^(n+1)*``(x^n/n),n = 1 .. infinity);" "6#/-%#lnG6#,&\"\"\" F(%\"xGF(-%$SumG6$*&),$F(!\"\",&%\"nGF(F(F(F(-%!G6#*&)F)F2F(F2F0F(/F2; F(%)infinityG" }{TEXT -1 4 " = " }{XPPEDIT 18 0 "x-x^2/2+x^3/3-x^4/4+ x^5/5-x^6/6+x^7/7+` . . . `;" "6#,2%\"xG\"\"\"*&F$\"\"#F'!\"\"F(*&F$\" \"$F*F(F%*&F$\"\"%F,F(F(*&F$\"\"&F.F(F%*&F$\"\"'F0F(F(*&F$\"\"(F2F(F%% (~.~.~.~GF%" }{TEXT -1 2 ", " }{XPPEDIT 18 0 "-1 " 0 "" {MPLTEXT 1 0 47 "taylor(ln(1+x),x,11);\np x := convert(%,polynom);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+9%\"xG\" \"\"F%#!\"\"\"\"#F(#F%\"\"$F*#F'\"\"%F,#F%\"\"&F.#F'\"\"'F0#F%\"\"(F2# F'\"\")F4#F%\"\"*F6#F'\"#5F8-%\"OG6#F%\"#6" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#pxG,6%\"xG\"\"\"*$)F&\"\"#F'#!\"\"F**$)F&\"\"$F'#F'F /*$)F&\"\"%F'#F,F3*$)F&\"\"&F'#F'F7*$)F&\"\"'F'#F,F;*$)F&\"\"(F'#F'F?* $)F&\"\")F'#F,FC*$)F&\"\"*F'#F'FG*$)F&\"#5F'#F,FK" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 47 "taylor(ln(1- x),x,11);\nqx := convert(%,polynom);" }}{PARA 11 "" 1 "" {XPPMATH 20 " 6#+9%\"xG!\"\"\"\"\"#F%\"\"#F(#F%\"\"$F*#F%\"\"%F,#F%\"\"&F.#F%\"\"'F0 #F%\"\"(F2#F%\"\")F4#F%\"\"*F6#F%\"#5F8-%\"OG6#F&\"#6" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#qxG,6%\"xG!\"\"*$)F&\"\"#\"\"\"#F'F**$)F&\"\"$F +#F'F/*$)F&\"\"%F+#F'F3*$)F&\"\"&F+#F'F7*$)F&\"\"'F+#F'F;*$)F&\"\"(F+# F'F?*$)F&\"\")F+#F'FC*$)F&\"\"*F+#F'FG*$)F&\"#5F+#F'FK" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 8 "px + qx; " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#,,*$)%\"xG\"\"#\"\"\"!\"\"*$)F&\" \"%F(#F)F'*$)F&\"\"'F(#F)\"\"$*$)F&\"\")F(#F)F,*$)F&\"#5F(#F)\"\"&" }} }{PARA 0 "" 0 "" {TEXT -1 70 "Compare this Taylor polynomial with the \+ order 11 Maclaurin series for " }{XPPEDIT 18 0 "ln(1-x^2)" "6#-%#lnG6# ,&\"\"\"F'*$%\"xG\"\"#!\"\"" }{TEXT -1 1 "." }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 23 "taylor(ln(1-x^2),x ,11);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+/%\"xG!\"\"\"\"##F%F&\"\"%#F %\"\"$\"\"'#F%F(\"\")#F%\"\"&\"#5-%\"OG6#\"\"\"\"#6" }}}{PARA 0 "" 0 " " {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}} {SECT 1 {PARA 4 "" 0 "" {TEXT -1 31 "Formal addition of power series" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}{PARA 0 "" 0 "" {TEXT -1 18 "Given power series" }}{PARA 256 "" 0 "" {TEXT -1 2 " " } {XPPEDIT 18 0 "f(x) = Sum(a[n]*x^n,n = 0 .. infinity);" "6#/-%\"fG6#% \"xG-%$SumG6$*&&%\"aG6#%\"nG\"\"\")F'F/F0/F/;\"\"!%)infinityG" }{TEXT -1 3 " = " }{XPPEDIT 18 0 "a[0]+a[1]*x+a[2]*x^2+a[3]*x^3+` . . . `" "6 #,,&%\"aG6#\"\"!\"\"\"*&&F%6#F(F(%\"xGF(F(*&&F%6#\"\"#F(*$F,F0F(F(*&&F %6#\"\"$F(*$F,F5F(F(%(~.~.~.~GF(" }{TEXT -1 3 " , " }{XPPEDIT 18 0 "ab s(x) < r[1];" "6#2-%$absG6#%\"xG&%\"rG6#\"\"\"" }{TEXT -1 2 " " }} {PARA 0 "" 0 "" {TEXT -1 3 "and" }}{PARA 256 "" 0 "" {TEXT -1 2 " " } {XPPEDIT 18 0 "g(x) = Sum(b[n]*x^n,n = 0 .. infinity);" "6#/-%\"gG6#% \"xG-%$SumG6$*&&%\"bG6#%\"nG\"\"\")F'F/F0/F/;\"\"!%)infinityG" }{TEXT -1 2 "= " }{XPPEDIT 18 0 "b[0]+b[1]*x+b[2]*x^2+b[3]*x^3+` . . . `" "6# ,,&%\"bG6#\"\"!\"\"\"*&&F%6#F(F(%\"xGF(F(*&&F%6#\"\"#F(*$F,F0F(F(*&&F% 6#\"\"$F(*$F,F5F(F(%(~.~.~.~GF(" }{TEXT -1 3 " , " }{XPPEDIT 18 0 "abs (x) < r[2]" "6#2-%$absG6#%\"xG&%\"rG6#\"\"#" }{TEXT -1 2 " " }}{PARA 0 "" 0 "" {TEXT -1 18 "we can define the " }{TEXT 261 16 "sum power se ries" }{TEXT -1 59 " by adding the corresponding terms of the two powe r series." }}{PARA 0 "" 0 "" {TEXT -1 5 "Then " }}{PARA 256 "" 0 "" {TEXT -1 2 " " }{XPPEDIT 18 0 "f(x)+g(x) = Sum(a[n]*x^n,n = 0 .. infi nity)+Sum(b[n]*x^n,n = 0 .. infinity);" "6#/,&-%\"fG6#%\"xG\"\"\"-%\"g G6#F(F),&-%$SumG6$*&&%\"aG6#%\"nGF))F(F5F)/F5;\"\"!%)infinityGF)-F/6$* &&%\"bG6#F5F))F(F5F)/F5;F9F:F)" }{TEXT -1 3 " , " }{XPPEDIT 18 0 "abs( x) " 0 "" {MPLTEXT 1 0 46 "taylor(sin(x),x,15);\np x := convert(%,polynom);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+3%\"xG\" \"\"F%#!\"\"\"\"'\"\"$#F%\"$?\"\"\"&#F'\"%S]\"\"(#F%\"'!)GO\"\"*#F'\") +o\"*R\"#6#F%\"++3-Fi\"#8-%\"OG6#F%\"#:" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#pxG,0%\"xG\"\"\"*&#F'\"\"'F'*$)F&\"\"$F'F'!\"\"*&#F'\"$?\"F'* $)F&\"\"&F'F'F'*&#F'\"%S]F'*$)F&\"\"(F'F'F.*&#F'\"'!)GOF'*$)F&\"\"*F'F 'F'*&#F'\")+o\"*RF'*$)F&\"#6F'F'F.*&#F'\"++3-FiF'*$)F&\"#8F'F'F'" }}} {PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 47 "taylor(1/(1-x),x,15);\nqx := convert(%,polynom);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+C%\"xG\"\"\"\"\"!F%F%F%\"\"#F%\"\"$F%\"\"%F%\"\"&F% \"\"'F%\"\"(F%\"\")F%\"\"*F%\"#5F%\"#6F%\"#7F%\"#8F%\"#9-%\"OG6#F%\"#: " }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%#qxG,@\"\"\"F&%\"xGF&*$)F'\"\"#F &F&*$)F'\"\"$F&F&*$)F'\"\"%F&F&*$)F'\"\"&F&F&*$)F'\"\"'F&F&*$)F'\"\"(F &F&*$)F'\"\")F&F&*$)F'\"\"*F&F&*$)F'\"#5F&F&*$)F'\"#6F&F&*$)F'\"#7F&F& *$)F'\"#8F&F&*$)F'\"#9F&F&" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT 261 4 "Note" }{TEXT -1 25 ": Applying the procedure " }{TEXT 0 6 "taylor" }{TEXT -1 142 " to a polynomial, with the order pa rameter set to a value greater than the degree of the polynomial, does not affect the polynomial except to " }{TEXT 261 47 "arrange the term s in order of increasing degree" }{TEXT -1 192 ". This seems to be dif ficult to achieve in any other way, because Maple usually tends to sor t the terms of a polynomial in order of decreasing degree, starting wi th the term of highest degree." }}{PARA 0 "" 0 "" {TEXT -1 0 "" }} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 19 "taylor(px+qx,x,15);" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#+A%\"xG\"\"\"\"\"!\"\"#F%F%F'#\"\"&\" \"'\"\"$F%\"\"%#\"$@\"\"$?\"F)F%F*#\"%R]\"%S]\"\"(F%\"\")#\"'\")GO\"'! )GO\"\"*F%\"#5#\")*z;*R\")+o\"*R\"#6F%\"#7#\"+,3-Fi\"++3-Fi\"#8F%\"#9 " }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 70 "Comp are this Taylor polynomial with the order 15 Maclaurin series for " } {XPPEDIT 18 0 "sin(x)+1/(1-x);" "6#,&-%$sinG6#%\"xG\"\"\"*&F(F(,&F(F(F '!\"\"F+F(" }{TEXT -1 1 "." }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 28 "taylor(sin(x)+1/(1-x),x,15);" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#+C%\"xG\"\"\"\"\"!\"\"#F%F%F'#\"\"&\" \"'\"\"$F%\"\"%#\"$@\"\"$?\"F)F%F*#\"%R]\"%S]\"\"(F%\"\")#\"'\")GO\"'! )GO\"\"*F%\"#5#\")*z;*R\")+o\"*R\"#6F%\"#7#\"+,3-Fi\"++3-Fi\"#8F%\"#9- %\"OG6#F%\"#:" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}}{SECT 1 {PARA 4 "" 0 "" {TEXT -1 40 "Multi plying a power series by polynomial" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}{SECT 1 {PARA 4 "" 0 "" {TEXT -1 9 "Example 1" } }{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}{PARA 0 "" 0 "" {TEXT -1 35 "Consider the Maclaurin series for " }{XPPEDIT 18 0 "f(x) = 1/( 1-x);" "6#/-%\"fG6#%\"xG*&\"\"\"F),&F)F)F'!\"\"F+" }{TEXT -1 1 "." }} {PARA 256 "" 0 "" {TEXT -1 2 " " }{XPPEDIT 18 0 "1/(1-x) = 1+x+x^2+x^ 3+x^4+x^5+x^6+x^7+x^8+x^9 + ` . . . `" "6#/*&\"\"\"F%,&F%F%%\"xG!\"\"F (,8F%F%F'F%*$F'\"\"#F%*$F'\"\"$F%*$F'\"\"%F%*$F'\"\"&F%*$F'\"\"'F%*$F' \"\"(F%*$F'\"\")F%*$F'\"\"*F%%(~.~.~.~GF%" }{TEXT -1 2 ", " }{XPPEDIT 18 0 "-1 \+ " 0 "" {MPLTEXT 1 0 25 "taylor((1+x)/(1-x),x,10);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+9%\"xG\"\"\"\"\"!\"\"#F%F'F'F'\"\"$F'\"\"%F'\"\"&F'\" \"'F'\"\"(F'\"\")F'\"\"*-%\"OG6#F%\"#5" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 68 "Another way to construct this series is to make use of th e identity " }{XPPEDIT 18 0 "(1+x)/(1-x) = 2/(1-x)-1" "6#/*&,&\"\"\"F& %\"xGF&F&,&F&F&F'!\"\"F),&*&\"\"#F&,&F&F&F'F)F)F&F&F)" }{TEXT -1 1 ". " }}{PARA 0 "" 0 "" {TEXT -1 50 "We just need to subtract 1 from the p ower series: " }}{PARA 0 "" 0 "" {TEXT -1 1 " " }}{PARA 256 "" 0 "" {TEXT -1 1 " " }{XPPEDIT 18 0 "2/(1-x) = 2+2*x+2*x^2+2*x^3+2*x^4+2*x^5 +2*x^6+2*x^7+2*x^8+2*x^9+`. . . `;" "6#/*&\"\"#\"\"\",&F&F&%\"xG!\"\"F ),8F%F&*&F%F&F(F&F&*&F%F&*$F(F%F&F&*&F%F&*$F(\"\"$F&F&*&F%F&*$F(\"\"%F &F&*&F%F&*$F(\"\"&F&F&*&F%F&*$F(\"\"'F&F&*&F%F&*$F(\"\"(F&F&*&F%F&*$F( \"\")F&F&*&F%F&*$F(\"\"*F&F&%'.~.~.~GF&" }{TEXT -1 3 ", " }{XPPEDIT 18 0 "-1 " 0 "" {MPLTEXT 1 0 1 ";" }}}}{SECT 1 {PARA 4 "" 0 " " {TEXT -1 9 "Example 2" }}{PARA 0 "" 0 "" {TEXT -1 45 "Consider the d egree 10 Taylor polynomial for " }{XPPEDIT 18 0 "exp(x)" "6#-%$expG6#% \"xG" }{TEXT -1 7 " about " }{XPPEDIT 18 0 "x = 0" "6#/%\"xG\"\"!" } {TEXT -1 1 "." }}{PARA 256 "" 0 "" {TEXT -1 2 " " }{XPPEDIT 18 0 "p(x )= 1 + x + x^2/2! + x^3/3! + x^4/4! + x^5/5! + x^6/6! + x^7/7! + x^8/8 ! + x^9/9! + x^10/10!" "6#/-%\"pG6#%\"xG,8\"\"\"F)F'F)*&F'\"\"#-%*fact orialG6#F+!\"\"F)*&F'\"\"$-F-6#F1F/F)*&F'\"\"%-F-6#F5F/F)*&F'\"\"&-F-6 #F9F/F)*&F'\"\"'-F-6#F=F/F)*&F'\"\"(-F-6#FAF/F)*&F'\"\")-F-6#FEF/F)*&F '\"\"*-F-6#FIF/F)*&F'\"#5-F-6#FMF/F)" }{TEXT -1 2 " ." }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 37 "p := unap ply(sum(x^i/i!,i=0..10),x);\n" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#>%\"p Gf*6#%\"xG6\"6$%)operatorG%&arrowGF(,8\"\"\"F-9$F-*&#F-\"\"#F-)F.F1F-F -*&#F-\"\"'F-)F.\"\"$F-F-*&#F-\"#CF-)F.\"\"%F-F-*&#F-\"$?\"F-)F.\"\"&F -F-*&#F-\"$?(F-)F.F5F-F-*&#F-\"%S]F-)F.\"\"(F-F-*&#F-\"&?.%F-)F.\"\")F -F-*&#F-\"'!)GOF-)F.\"\"*F-F-*&#F-\"(+)GOF-)F.\"#5F-F-F(F(F(" }}} {PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 15 "The polyn omial " }{XPPEDIT 18 0 "p(x)^2" "6#*$-%\"pG6#%\"xG\"\"#" }{TEXT -1 134 " has degree 20, but if we compute its Taylor series up as far as \+ the term of degree 12, this will effectively truncate the polynomial. " }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 20 "taylor(p(x)^2,x,13);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+?%\"x G\"\"\"\"\"!\"\"#F%F'F'#\"\"%\"\"$F*#F'F*F)#F)\"#:\"\"&#F)\"#X\"\"'#\" \")\"$:$\"\"(#F'F4F3#F)\"%NG\"\"*#F)\"&vT\"\"#5#\"#J\"'+[g\"#6#\"#P\"( gXN%\"#7-%\"OG6#F%\"#8" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 25 "Up as far as the term in " }{XPPEDIT 18 0 "x^10" "6# *$%\"xG\"#5" }{TEXT -1 53 ", this agrees with the Taylor series for th e product " }{XPPEDIT 18 0 "p(x)*exp(x)" "6#*&-%\"pG6#%\"xG\"\"\"-%$ex pG6#F'F(" }{TEXT -1 1 "." }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 25 "taylor(p(x)*exp(x),x,13);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+?%\"xG\"\"\"\"\"!\"\"#F%F'F'#\"\"%\"\"$F*#F 'F*F)#F)\"#:\"\"&#F)\"#X\"\"'#\"\")\"$:$\"\"(#F'F4F3#F)\"%NG\"\"*#F)\" &vT\"\"#5#\"%Z?\")+o\"*R\"#6#\"%h8\"*+smf\"\"#7-%\"OG6#F%\"#8" }}} {PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 "" {TEXT -1 81 "Both of t he previous expansions agree with the terms of the Maclaurin series fo r " }{XPPEDIT 18 0 "exp(x)+exp(x)=exp(2*x)" "6#/,&-%$expG6#%\"xG\"\"\" -F&6#F(F)-F&6#*&\"\"#F)F(F)" }{TEXT -1 26 " up as far as the term in \+ " }{XPPEDIT 18 0 "x^10" "6#*$%\"xG\"#5" }{TEXT -1 1 "." }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 22 "taylor( exp(2*x),x,13);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+?%\"xG\"\"\"\"\"! \"\"#F%F'F'#\"\"%\"\"$F*#F'F*F)#F)\"#:\"\"&#F)\"#X\"\"'#\"\")\"$:$\"\" (#F'F4F3#F)\"%NG\"\"*#F)\"&vT\"\"#5#F3\"'Df:\"#6#F)\"'vxY\"#7-%\"OG6#F %\"#8" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}} }{SECT 1 {PARA 4 "" 0 "" {TEXT -1 28 "Differentiating power series" }} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}{PARA 0 "" 0 "" {TEXT -1 20 "If the power series " }{XPPEDIT 18 0 "Sum(a[n]*x^n,n=0..infinit y)" "6#-%$SumG6$*&&%\"aG6#%\"nG\"\"\")%\"xGF*F+/F*;\"\"!%)infinityG" } {TEXT -1 15 " converges for " }{XPPEDIT 18 0 "-R " 0 "" {MPLTEXT 1 0 41 "taylor(sin(x),x,10);\nDiff(% ,x);\nvalue(%);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+/%\"xG\"\"\"F%#!\" \"\"\"'\"\"$#F%\"$?\"\"\"&#F'\"%S]\"\"(#F%\"'!)GO\"\"*-%\"OG6#F%\"#6" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%%DiffG6$+/%\"xG\"\"\"F(#!\"\"\"\"' \"\"$#F(\"$?\"\"\"&#F*\"%S]\"\"(#F(\"'!)GO\"\"*-%\"OG6#F(\"#6F'" }} {PARA 11 "" 1 "" {XPPMATH 20 "6#+/%\"xG\"\"\"\"\"!#!\"\"\"\"#F)#F%\"#C \"\"%#F(\"$?(\"\"'#F%\"&?.%\"\")-%\"OG6#F%\"#5" }}}{EXCHG {PARA 0 "> \+ " 0 "" {MPLTEXT 1 0 1 ";" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 " " 0 "" {TEXT -1 28 "For another example, we have" }}{PARA 256 "" 0 "" {TEXT -1 2 " " }{XPPEDIT 18 0 "ln(1+x)=x-x^2/2+x^3/3-x^4/4+x^5/5-x^6/ 6+x^7/7-x^8/8+ ` . . . `" "6#/-%#lnG6#,&\"\"\"F(%\"xGF(,4F)F(*&F)\"\"# F,!\"\"F-*&F)\"\"$F/F-F(*&F)\"\"%F1F-F-*&F)\"\"&F3F-F(*&F)\"\"'F5F-F-* &F)\"\"(F7F-F(*&F)\"\")F9F-F-%(~.~.~.~GF(" }{TEXT -1 3 ", " }}{PARA 0 "" 0 "" {TEXT -1 38 "and differentiating term by term gives" }} {PARA 256 "" 0 "" {TEXT -1 2 " " }{XPPEDIT 18 0 "1-x+x^2-x^3+x^4-x^5+ x^6-x^7+ ` . . . `" "6#,4\"\"\"F$%\"xG!\"\"*$F%\"\"#F$*$F%\"\"$F&*$F% \"\"%F$*$F%\"\"&F&*$F%\"\"'F$*$F%\"\"(F&%(~.~.~.~GF$" }{TEXT -1 4 ", \+ " }}{PARA 0 "" 0 "" {TEXT -1 35 "which is the Maclaurin series for \+ " }{XPPEDIT 18 0 "d/dx" "6#*&%\"dG\"\"\"%#dxG!\"\"" }{TEXT -1 2 " " } {XPPEDIT 18 0 "[ln(1+x)]=1/(1+x)" "6#/7#-%#lnG6#,&\"\"\"F)%\"xGF)*&F)F ),&F)F)F*F)!\"\"" }{TEXT -1 2 ". " }}{PARA 0 "" 0 "" {TEXT -1 0 "" }} {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 42 "taylor(ln(1+x),x,10);\nDiff( %,x);\nvalue(%);" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+7%\"xG\"\"\"F%#! \"\"\"\"#F(#F%\"\"$F*#F'\"\"%F,#F%\"\"&F.#F'\"\"'F0#F%\"\"(F2#F'\"\")F 4#F%\"\"*F6-%\"OG6#F%\"#5" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#-%%DiffG6 $+7%\"xG\"\"\"F(#!\"\"\"\"#F+#F(\"\"$F-#F*\"\"%F/#F(\"\"&F1#F*\"\"'F3# F(\"\"(F5#F*\"\")F7#F(\"\"*F9-%\"OG6#F(\"#5F'" }}{PARA 11 "" 1 "" {XPPMATH 20 "6#+7%\"xG\"\"\"\"\"!!\"\"F%F%\"\"#F'\"\"$F%\"\"%F'\"\"&F% \"\"'F'\"\"(F%\"\")-%\"OG6#F%\"\"*" }}}{PARA 0 "" 0 "" {TEXT -1 0 "" } }{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}}{SECT 1 {PARA 4 "" 0 "" {TEXT -1 24 "Integrating power series" }}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 1 ";" }}}{PARA 0 "" 0 "" {TEXT -1 20 "If the power series " }{XPPEDIT 18 0 "Sum(a[n]*x^n,n=0..infinity)" "6#-%$SumG6$*&&%\"aG6# %\"nG\"\"\")%\"xGF*F+/F*;\"\"!%)infinityG" }{TEXT -1 15 " converges fo r " }{XPPEDIT 18 0 "-R " 0 "" {MPLTEXT 1 0 1 ";" }}}}{PARA 0 "" 0 "" {TEXT -1 0 "" }}{PARA 0 "" 0 " " {TEXT -1 1 "\004" }}{PARA 0 "" 0 "" {TEXT -1 0 "" }}}{MARK "2 0" 11 }{VIEWOPTS 1 1 0 1 1 1803 1 1 1 1 }{PAGENUMBERS 0 1 2 33 1 1 }