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Stephen Wolfram
SEARCH MATHEMATICA 8 DOCUMENTATION
THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT.
SEE THE
DOCUMENTATION CENTER
FOR THE LATEST INFORMATION.
Mathematica
>
Algebraic Numbers
>
Built-in
Mathematica
Symbol
ContinuedFraction
Element
RootReduce
See Also »
|
Algebraic Numbers
Continued Fractions & Rational Approximations
New in 6.0: Number Theory & Integer Functions
More About »
QuadraticIrrationalQ
QuadraticIrrationalQ
[
x
]
gives
True
if
x
is a quadratic irrational and
False
otherwise.
MORE INFORMATION
QuadraticIrrationalQ
[
x
]
tests whether
x
can be expressed in the form
, where
a
,
b
and
c
are integers.
Quadratic irrationals have continued fractions that are ultimately periodic.
EXAMPLES
CLOSE ALL
Basic Examples
(1)
In[1]:=
Out[1]=
In[2]:=
Out[2]=
Scope
(4)
SEE ALSO
ContinuedFraction
Element
RootReduce
MORE ABOUT
Algebraic Numbers
Continued Fractions & Rational Approximations
New in 6.0: Number Theory & Integer Functions
New in 6
© 2013 Wolfram Research, Inc.
, where a, b and c are integers.
EXAMPLES
Basic Examples 
Scope 