Brahmagupta's problem
This problem was given in India by the mathematician Brahmagupta in 628 AD in his treatise Brahma Sputa Siddhanta:
Solve the Pell's equation
for integers.
Brahmagupta gave the smallest solution as
This problem was given in India by the mathematician Brahmagupta in 628 AD in his treatise Brahma Sputa Siddhanta:
Solve the Pell's equation
for integers.
Brahmagupta gave the smallest solution as