The SUMSQ function syntax has the following arguments: Number1, number2, ... Number1 is required, subsequent numbers are optional. 1 to 255 arguments for which you want the sum of the squares. You can also use a single array or a reference to an array instead of arguments separated by commas.
THEY/THEIR (SINGULAR). Using the plural pronoun to refer to a single person of unspecified gender is an old and honorable pattern in English, not a newfangled bit of degeneracy or a politically correct plot to avoid sexism (though it often serves the latter purpose).
carry a torch for (third-person singular simple present carries a torch for, present participle carrying a torch for, simple past and past participle carried a torch for) (idiomatic) To love or to be romantically infatuated with, especially when such feelings are not reciprocated.