This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Weierstrass. de January Weierstrass selbst berechnet Benutzer Frank Klemm gemeinfrei PDuserw de Frank Klemm Original upload log de Wdwdbot CommonsHelper de Weierstrass Frank Klemm bytes no berechnet gemeinfrei Uncategorized January
Page 2023 Free-images.com. All images are Public Domain