Hi there, here's my opinion
@laepelba We tend to say "metros por segundo" just like you do, even though it should be "metros por cada segundo" (same happens with other x/y units), accordingly with definition of m/s, it is the distance covered by an object for each second elapsed. I don't know exactly why we say it that way (as children we are taught this), i guess it's a bad custom of ours. I found this at Wikipedia: Quote:
Let us know if any doubts still remain. Regards |
Thanks, alx - helps a lot! :)
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That explanation should be the same one in English. Maybe one tend not to think of things like this until one decides to learn another language, and that's when "idiolects* and idiotsyncracies" start to surface, in both languages. *(term taught from pjt, I love it!) :) |
Okay, how about this one... In Geometry we talk about "conic sections": circles, parabolas, hyperbolas and ellipses.
Would the vocabulary be as follows? Las secciónes conicas son los círculos, las parábolas, las hipérbolas, y las elipses. :?::?::?::?: |
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You got it. |
How about the word "countability" (In mathematics, a countable set is a set with the same cardinality (number of elements) as some subset of the set of natural numbers.) In Spanish, "countable" would be "contable" or "numerable", right? How about the noun form, then?
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My teachers never used any equivalent (we only talked about "conjuntos contables"), and although I've never seen the word used in this sense, the DRAE gives contabilidad".
I suppose it will be correct to say "la contabilidad de un conjunto", to talk about it's quality of being countable. |
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In the RAE, are you looking at: "Aptitud de las cosas para poder reducirlas a cuenta o cálculo." ?? I suppose the reason I wasn't sure about that particular definition was because it seemed to be *not* about pure mathematics. Anyway, thanks for the answer. It's actually a word we use quite frequently, but ONLY in reference to sets of numbers. |
rotor / rotacional = curl / rotor
divergencia = divergence gradiente = gradient nabla (del) = del (nabla) |
Un conjunto es contable o numerable si es finito. ;)
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