3

This maybe seems like a weird question, but since I started using TeX/LaTeX I see more and more things in "real life" that seem to be set with it. E.g. the train timetables here in Germany are set with some kind of TeX usually and you can clearly recognize the computer-modern-fontface. Now, after quite a long time, I looked something up in my Brockhaus (German encyclopedia) from 1980 and, though, I am no expert, I believe it was set with TeX too. The font looks pretty much like CM, the equations look a lot like CM and so on.

enter image description here

So, does anyone know what the Brockhaus was set with in the 80's? Or does anyone recognize what it was if it wasn't some kind of TeX?

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    I am not sure if this is really typeset with TeX, although it should be technically possible since the development started in 1977. But I doubt that it has been used by publishing houses in this time. – Chris Nov 18 '13 at 20:03
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    The math font is not italic, the spacing around binary relations (\ge) is not correct, so it certainly does not look like TeX output. – Aditya Nov 18 '13 at 20:05
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    And the font is surely not Computer Modern, rather some Times variant. – Robert Nov 18 '13 at 20:07
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    This font is not CM, the details differ. In CM the thinnest curves are exactly on the top and bottom, in this font they're on the bottom right, top left (like Times). Also, TeX was released in 1978, so in 1980 it was likely much less popular (computers were much less popular...) – Szabolcs Nov 18 '13 at 20:07
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    IMHO this was not TeX. See the lower index on the sum. Too ugly!! – Sigur Nov 18 '13 at 21:38
2

Certainly most authorative is http://www.brockhaus.de/kontakt/index.php.

However, to suggestions that it cannot be TeX (not CM, too early, bad spacing in inequality) I can add the following:

  1. The height of \circ in definition of Quadrat.
  2. The shape of triangle in definitions.
  3. The place of i under sum in quadratische Form.
  4. The spacing around ='s.
  5. The retort-like shape in Quadratsäure.
  6. The structural formula, evidently obtained manually (see the endings of the lines).
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