In Brazil, the quadratic formula $$\frac{-b\pm \sqrt{b^2-4 ac}}{2a}$$ is almost always called Bhaskara formula.
I'm probably missing something, but I've never seen, in the literature from other countries, any use of this terminology Bhaskara formula in this context, or even a more direct association of the great mathematician Bhaskara (c. 1114–1185) with this formula.
Have you ever seen this terminology within the math literature you've been exposed? or know about some connection of Bhaskara with the quadratic formula?
@Will Jagy, thanks for the hint. Yesterday I ended up finding a Brazilian M.Sc. Dissertation in Portuguese:
It examines the connection of Bhaskara with the quadratic in a general historical context and in Brazilian math literature.
Guedes suggests that the earliest known association of Bhaskara with the quadratic in Brazilian texts was in 1909, by an influential math pre-college algebra text book:
Peres y Marin, the author of this book was born in Spain in 1858 and moved to Brazil in 1893, spending the rest of his life in Brazil. He is recognized as being a respected math teacher and prolific author.
On the resolution of the quadratic, Peres y Marin shows the quadratic formula, deduced from completing squares, and connects the formula with a footnote saying (in free translation from Portuguese):
An image of the page in a later edition of the book from 1916 is shown below: