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28
votes
6answers
1k views

Why use Konjunktiv I in mathematics?

Konjunktiv I is mostly used for indirect speech and wishes. The following sentence is neither: Die Funktionen ψn(x) seien Eigenfunktionen eines Hamiltonoperators Ĥ. Why is the Konjunktiv I used ...
8
votes
1answer
440 views

How to read in German these mathematical symbols (f′,f″,f‴,∘,ã ,â,…)?

How to read the mathematical notation of the small list below, say in a blackboard-talk. Notice that I'm not asking for the meaning, but the name of the symbol attached to "the letter" is what matters:...