28 votes
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How are probabilities written in German?

This is not related to writing about probabilities in particular. Most probably this is just a typo of someone who is used to writing in English. You are right, in general a comma is used as the ...
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26 votes
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How should I say "where", as in mathematical definitions?

There are two common ways of indicating restricting conditions. One way is to use a subordinate clause initiated with the pronomial adverb wobei: Definition: Sei P(A,B) = A - B, wobei A ⊂ U und A ⊄ ...
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26 votes
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Need help to read Fraktur from a 18th century book

The sentence is: Diese beyden letzten Dinge wollen wir indeß bey Seite setzen, um den Fall nicht zu sehr zu verwickeln. Aendert... Some of the words had a different spelling in that time. What you ...
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25 votes
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How to pronounce "=" in mathematics or in related disciplines?

The usual way to say it is "ist gleich" or, shorter, "gleich". a = b : "a (ist) gleich b" a ≠ b : "a (ist) ungleich b" a ≤ b : "a (ist) kleiner gleich b&...
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  • 16.4k
24 votes
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What does the abbreviation 'z. Bw.' mean?

In a context of mathematics "z. Bw." is probably zum Beweis which is "as proof".
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  • 11.4k
21 votes

How are probabilities written in German?

I am teaching statistics too at an Austrian university1 together with a professor for statistics (I'm not a professor). And I noticed, that my colleague - although he is a German native speaker, born, ...
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18 votes

Why "Integrieren bis Unendlich" but not "bis Unendlichkeit"?

Unendlich is used as a "number word" in mathematics like five or ninetynine You also say Die Zahlen von eins bis fünf, so you can also say Die Summe von fünf bis unendlich. The mathematical symbol ∞ ...
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17 votes
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What does the abbrevation “o.E.” stand for?

This stands for ohne Einschränkung, short for ohne Beschränkung der Allgemeinheit and would usually be abbreviated as “o.B.d.A.” The english equivalent is “WLOG”, which is short for without loss of ...
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17 votes
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“Intrinsic beauty” auf Deutsch?

Alt, aber noch brauchbar ist tatsächlich ...aufgrund der ihr innewohnenden Schönheit. (Obwohl sich das schon ein bisschen geschraubt anhört) Für Fremdwortliebhaber: ...wegen ihrer inhärenten ...
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  • 57.2k
15 votes
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Translating “beschränkt” in a mathematical/physical context

i.e. solutions that are bounded for all values of zeta under any initial conditions. Solutions to differential equations can be distinguished in bounded and unbounded cases. In case like these (also ...
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  • 1,303
15 votes

How to write graph coordinates in German?

I think you are referring to the normal Cartesian coordinate system. In this case, the coordinates are usually separated by "|" (senkrechter Strich - vertical bar/Pipe) or ";" (...
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  • 14k
13 votes
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How do you say “act on” in a quantum-mechanical context in German?

In most cases in physics, act on sth. is translated by auf etw. wirken. So the phrase is: Der Impulsoperator p wirkt auf das Ket |ψ>. For example, in this Wikipedia article you can read: In der ...
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  • 7,433
13 votes
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Relationssymbole (≥, ≤ u.a.) in Texten

Eine sprachlich weniger mathematisch klingende Alternative, die man erwägen kann, wäre: ≥ muss mindestens: Das Bild muss mindestens 500 px hoch sein. ≤ darf höchstens: Das Bild darf höchstens 500 ...
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  • 69.8k
13 votes

Why "Integrieren bis Unendlich" but not "bis Unendlichkeit"?

Actually I see no reason for a substantive there. The word unendlich is the appropriate number word on the same level as zero, one, pi and four (which are no substantives either). In German ...
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  • 24.5k
13 votes
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Rules for naming fractions with non-trivial denominators

Usually you will add the suffix -tel -stel if the number ends with 'g' or 'd' (zwanzig, dreißig, tausend, etc.) -el if the number ends with 't' (acht, dreihundertacht, etc.) but no rule ...
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  • 14k
13 votes

Translation of "for some" as existential quantifier

The formal statement ∃ x ∈ A : P(x) using the existential quantifier reads as Es existiert ein x ∈ A, so dass P(x) gilt or Es gibt ein x ∈ A, so dass P(x) gilt. It is unnecessary to say mindestens ...
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  • 8,621
12 votes

How to write graph coordinates in German?

Here is a picture from my schoolbook from 2006 using the vertical line as a separator to avoid a clash with decimal separators: Nein, er hat nicht recht. Der untere Graph gehört zu einer anderen ...
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  • 259
11 votes
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Why is n! called “n Fakultät”?

Der französische Mathematiker C. Kramp führte um 1798 den Begriff faculty bzw. faculté (dt. „Fähigkeit“) ein.(1) Bei der Eindeutschung wurde dafür die im wissenschaftlichen Bereich übliche Endung -ät ...
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  • 10.1k
10 votes

"5 minus 4 sind gleich 1". Why plural?

Good observation. In fact, the expression 5 - 4 = 1 should be read as Fünf minus vier ist (gleich) eins. Five minus four is (equal to) one. The equality sign within an expression A = B puts the ...
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9 votes
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How do you say "handwavy proof" in German?

There seems to be no equally used German counterpart as I have often heard (and used) the English “hand waving” while conversing about mathematics in German.
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  • 19k
9 votes

Why use Konjunktiv I in mathematics?

The exact same thing happens in English. One would say: Let ψn(x) be the characteristic function of the Hamiltonian operator Ĥ. This has a different meaning than: ψn(x) is the characteristic ...
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9 votes
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Colloquially, how is the verb for writing on LaTeX called?

Yes, that is the verb, texen or TeXen. Ich texe meine Doktorarbeit. Note that pronunciation may vary. Bavarians sometimes lean towards /x/ for the x. Those who are proud of their knowledge of ...
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  • 38k
9 votes
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"derart, dass" in Mathematik

Yes, "derart, dass" means the same as "so dass", namely "such that". "So, dass" is more common, though. There is also "dergestalt, dass", which means the same, but is even rarer.
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  • 10.4k
9 votes

How "synthetic division" is called in Germany?

I think it would be referred to either generally as Polynomdivision / Partialdivision, which is the general term for polynomial division, or alternatively as das Horner-Schema. We have that name in ...
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  • 191
9 votes
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"5 minus 4 sind gleich 1". Why plural?

Ich hätte hier 5 minus 4 ist gleich 1 gesagt, und ich denke, das ist die gängigere Praxis. Die Logik dahinter ist (5 minus 4) ist gleich 1 Jedoch lässt es nach meiner Beobachtung das ...
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9 votes

How to write graph coordinates in German?

Yes and no. Taking a look at wikipedia, you will find the same sign: a comma. Thus these examples live without any real numbers, this is sufficient and does not help in your question. In education ...
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  • 3,794
8 votes

How do you say "handwavy proof" in German?

When I was studying maths at university, "Beweis durch Händewedeln" was in use, but that describes a very very vague "proof" in the sense of "it can be easily seen that theorem 1.2 applies together ...
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  • 6,956
8 votes
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Writing mathematical texts in German

My recommendation is to try the soon-to-be-published book Wie man mathematisch schreibt by Burkhard Kümmerer, ISBN 978-3-658-01576-3. This should get the job done for you.
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8 votes

Relationssymbole (≥, ≤ u.a.) in Texten

Ausgeschrieben heißt es "größer oder gleich". Umgangssprächlich wird es auch oft zu "größer gleich" verkürzt.
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