For any real number , an irrational number can be approximated by infinitely many rational fractions in such a way that
If , this becomes Hurwitz's irrational number theorem.
For any real number , an irrational number can be approximated by infinitely many rational fractions in such a way that
If , this becomes Hurwitz's irrational number theorem.
Weisstein, Eric W. "Segre's Theorem." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SegresTheorem.html