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{SECT 0 {EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 0 "" }}}{EXCHG {PARA 0 "
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12 "with(plots):" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 70 "implici
tplot(x^2+y^2=1, x =-2..2, y=-2..2,\n     scaling=constrained); " }}}
{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 117 "for c from 1 to 4 do implic
itplot(x*y=c,x=-5..5,y=-5..5) od;\nimplicitplot(sin((x+y))=(y^2)*cos(x
),x=-3..3, y=-3..3);\n" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 28 "f
:=sin((x+y))=(y^2)*cos(x);\n" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 
0 21 "implicitdiff(f,y,x);\n" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 
0 81 "implicitplot(\{x^2-y^2=1,x^2-y^2=2,x^2-y^2=3,x*y=1,x*y=2,x*y=3\}
,x=-5..5,y=-5..5);\n" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 34 "f:=
x^2-y^2=1;implicitdiff(f,y,x);\n" }}}{EXCHG {PARA 0 "> " 0 "" 
{MPLTEXT 1 0 30 "g:=x*y=2;implicitdiff(g,y,x);\n" }}}{EXCHG {PARA 0 ">
 " 0 "" {MPLTEXT 1 0 90 "with(plots):implicitplot(2*(x^2+y^2)^2=25*(x^
2-y^2),x=-4..4,y=-4..4,scaling=constrained);\n" }}}{EXCHG {PARA 0 "> \+
" 0 "" {MPLTEXT 1 0 52 "f:=2*(x^2+y^2)^2=25*(x^2-y^2); implicitdiff(f,
y,x);\n" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 77 "implicitplot(x^2
*y^2=((y+1)^2)*(4-y^2),x=-4..4,y=-4..4,scaling=constrained);\n" }}}
{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 50 "f:=x^2*y^2=((y+1)^2)*(4-y^2)
,implicitdiff(f,y,x);\n" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 14 "
?implicitdiff;" }}}{EXCHG {PARA 0 "" 0 "" {TEXT -1 23 "Example, page 2
44, #38." }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 78 "implicitplot(\{
x^2-y^2=5,4*x^2+9*y^2=72\},x=-5..5,y=-5..5,scaling=constrained);\n" }}
}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 34 "solve(\{x^2-y^2=5,4*x^2+9*y
^2=72\});" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 34 "f:=x^2-y^2=5; \+
implicitdiff(f,y,x);" }}}{EXCHG {PARA 0 "> " 0 "" {MPLTEXT 1 0 39 "g:=
4*x^2+9*y^2=72; implicitdiff(g,y,x);" }}}}{MARK "20" 0 }{VIEWOPTS 1 1 
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