TOPICS
Search

Brahmagupta Identity


Let

 beta=detB=x^2-ty^2,
(1)

where B is the Brahmagupta matrix, then

det[B(x_1,y_1) B(x_2,y_2)]=det[B(x_1,y_1)]det[B(x_2,y_2)]
(2)
=beta_1beta_2].
(3)

See also

Brahmagupta Matrix

Explore with Wolfram|Alpha

References

Suryanarayan, E. R. "The Brahmagupta Polynomials." Fib. Quart. 34, 30-39, 1996.

Referenced on Wolfram|Alpha

Brahmagupta Identity

Cite this as:

Weisstein, Eric W. "Brahmagupta Identity." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/BrahmaguptaIdentity.html

Subject classifications