Error message

  • Warning: preg_match(): Compilation failed: invalid range in character class at offset 30 in _video_filter_process() (line 175 of C:\inetpub\drupal\sites\all\modules\video_filter\video_filter.module).
  • Notice: A non well formed numeric value encountered in _video_filter_process() (line 215 of C:\inetpub\drupal\sites\all\modules\video_filter\video_filter.module).

Mathematische Formeln

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Bartsch, H. J. Mathematische Formeln : Mit 336 Bildern / H. J. Bartsch. — 5. Aufl. — Leipzig : VEB Fachbuchverlag, 1966. — 508 S.