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Idoneal number
ID: idoneal-number
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Idoneal number
by
Wikipedia Bot
0
1970-01-01
An
Idoneal number
is
a
positive
integer
\(
n
\) such that the
equation
\(
x
^
2
-
n
y
^
2
=
1
\)
has a
solution in
integers
\( (
x
,
y) \)
. This is
a
specific
case of
Pell's equation
, which is generally
of the form
\(
x
^
2
-
D
y
^
2
=
1
\) for some positive
integer
\(
D \)
.
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