bloomery

plural of Catalan forge

(geometry) A ruled surface whose rulings are all parallel to a fixed plane.

plural of Catalan surface

Hostility or discrimination against Catalans.

(historical) The stated proclaimed in 1641. / (historical) The state proclaimed in 1931. / The state proclaimed in October 2017.

Alternative form of Judeo-Catalan

A conjectured Jewish language spoken by the Jews in Northeastern Spain, especially in Catalonia, Valencia and the Balearic Islands.

(mathematics) The number G=𝛽(2)=∑ₙ₌₀ ᪲((-1)ⁿ)/((2n+1)²)=1/(1²)-1/(3²)+1/(5²)-1/(7²)+1/(9²)-⋯, where β is the Dirichlet beta function, with a value of approximately 0.915965594177…

FC Barcelona