Title: Valgfritt

Text: To write and speak correctly is certainly necessary; but it is not sufficient. A derivation correctly presented in the book or on the blackboard may be inaccessible and uninstructive, if the purpose of the successive steps is incomprehensible, if the reader or listener cannot understand how it was humanly possible to find such an argument. Hver avsnitt vil være en test.

Save test: Bruk dette hvis du vil dele denne skrivetesten (kun for godkjente brukere).