User:Micha7a

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plPolski jest językiem ojczystym tego użytkownika.

en-3This user can contribute with an advanced level of English.

de-1Dieser Benutzer hat grundlegende Deutschkenntnisse.

wiki-1This user is a beginning Wikipedia editor.

$e^{i\pi \ }$

This user is a mathematician.

IEEEThis user is a Student Member of the Institute of Electrical and Electronics Engineers.