最終更新日：2024/08/01
(mathematics, geometry) Any of a family of curves defined as the locus of points p, such that each p is on a line that passes through a given fixed point P and intersects a given curve, C, and the distance from p to the point of intersection with C is a specified constant (note that for nontrivial cases two such points p satisfy the criteria, and the resultant curve has two parts).
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conchoid
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conchoid
noun
(mathematics,
geometry)
Any
of
a
family
of
curves
defined
as
the
locus
of
points
p,
such
that
each
p
is
on
a
line
that
passes
through
a
given
fixed
point
P
and
intersects
a
given
curve,
C,
and
the
distance
from
p
to
the
point
of
intersection
with
C
is
a
specified
constant
(note
that
for
nontrivial
cases
two
such
points
p
satisfy
the
criteria,
and
the
resultant
curve
has
two
parts).
意味（1）
(mathematics,
geometry)
Any
of
a
family
of
curves
defined
as
the
locus
of
points
p,
such
that
each
p
is
on
a
line
that
passes
through
a
given
fixed
point
P
and
intersects
a
given
curve,
C,
and
the
distance
from
p
to
the
point
of
intersection
with
C
is
a
specified
constant
(note
that
for
nontrivial
cases
two
such
points
p
satisfy
the
criteria,
and
the
resultant
curve
has
two
parts).
