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# record 1: header: parent, keywords
# record 2: calling parameters
# record 3: submit buttons
# record 4: html form content
:geometry, analytic geometry, algebraic geometry
implicit, parametric, implicit surface, parametric surface, space surface,
surface, parametric space surface, equation, implicit equation,
parametric equation
:precision, 12
operation, parametric to implicit surface
size, 600x360
:, Find the implicit equation
:<TD style="text-align:center;">
$submit1
of a parametric surface:
<TD ALIGN=LEFT>x = f(u,v) =
<INPUT TYPE=TEXT SIZE=15 NAME="formula" VALUE="u^2+v">
<BR>y = g(u,v) =
<INPUT TYPE=TEXT SIZE=10 NAME="formula" VALUE="uv+1">
<BR>z = h(u,v) =
<INPUT TYPE=TEXT SIZE=10 NAME="formula" VALUE="v^2-1">
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