{VERSION 2 3 "SUN SPARC SOLARIS" "2.3" }
{USTYLETAB {CSTYLE "Maple Input" -1 0 "Courier" 0 1 255 0 0 1 0 1 0 0 
1 0 0 0 0 }{PSTYLE "Normal" -1 0 1 {CSTYLE "" -1 -1 "" 0 1 0 0 0 0 0 
0 0 0 0 0 0 0 0 }0 0 0 -1 -1 -1 0 0 0 0 0 0 -1 0 }}
{SECT 0 {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 47 "de:=t*diff(x(t),t,t)
-(t+1)*diff(x(t),t)+x(t)=0;" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 
16 "dsolve(de,x(t));" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 45 "deu
:=diff(v(t),t)*t*exp(t)+(t-1)*exp(t)*v(t);" }}}{EXCHG {PARA 0 "> " 0 "
" {MPLTEXT 1 0 17 "dsolve(deu,v(t));" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 17 "int(t*exp(-t),t);" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 75 "restart:de:=x*diff(y(x),x,x,x)+(1-x)*diff(y(x),x,x) +
x*diff(y(x),x)-y(x)=0;" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 16 "d
solve(de,y(x));" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 3 "?Ei" }}}
{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 67 "red:=x^2*diff(v(x),x,x)+(4*x
-x^2)*diff(v(x),x)+ (x^2-2*x+2)*v(x)=0;" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 17 "dsolve(red,v(x));" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 17 "simplify(\",trig);" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 57 "restart:de:=x*diff(y(x),x,x)+(1-x)*diff(y(x),x)+2*y(x
)=0;" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 31 "subs(y(x)=u(x)*(x^2
-4*x+2),de);" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 17 "de2:=simpli
fy(\");" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 17 "dsolve(de2,u(x))
;" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 25 "sol2:=rhs(\")*(x^2-4*x
+2);" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 12 "simplify(\");" }}}}
{MARK "16 0 0" 0 }{VIEWOPTS 1 1 0 2 1 1805 }