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I asked a question about ua(x) just now.

Then I realized I have no idea how to read aloud the symbol.

Usually I read aloud X1 as "X one". Should I read aloud ua(x) as "u a of x"?

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I would pronounce this:

f(x)

as f of x.

And I would pronounce this:

ua

as u sub a.

Therefore, I would pronounce your expression as: u sub a of x.

Note: This assumes that ua is a function. If ua was a variable and not a function, then I suppose this could be a multiplication expression instead. In that case, I would say: u sub a times x

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  • Following the link, we find that in the intended context u_a is indeed a function.
    – Anton Sherwood
    Sep 20, 2019 at 19:41
  • @AntonS - True, but for the sake of completeness, I figured it would be better to leave an answer for the general case.
    – J.R. ♦
    Sep 20, 2019 at 19:43
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    If only it were easy to upload an audio file...because a non-native pronunciation of "a" and "u" could be very different from the one native speakers understand.
    – Mari-Lou A
    Sep 22, 2019 at 11:44
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"ua(x)".

Here u refers to an object with a dependance to another object a.

When a is an integer, we commonly say that u is a sequence.

More generally, if a is a complex number, we can say that u is a function of a (just like in the idea that u is function of a, I.E. it depends on a ).

So simply, just as you read "f(x)", f of x, i'd say "ua(x)" u of a, because you could also write

ua(x) = u(a)(x)

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  • Do you mean "dependence on" instead of "dependance to"?
    – Jasper
    Sep 27, 2019 at 21:29

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