April 2013
Intermediate to advanced
978 pages
28h 8m
German
book
Microsoft Excel: Formeln & Funktionen - Das Maxibuch, 3., aktualisierte und erweiterte Auflage
by Egbert Jeschke, Eckehard Pfeifer, Helmut Reinke, Sara Unverhau, Bodo Fienitz
Content preview from Microsoft Excel: Formeln & Funktionen - Das Maxibuch, 3., aktualisierte und erweiterte Auflage
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Funktionen für komplexe Zahlen
Komplexe Zahlen
Insgesamt 26 Funktionen betreffen das Thema »Komplexe Zahlen«. An dieser Stelle möchten wir Ihnen zu diesem Thema einige grundsätzliche Erläuterungen mit auf den Weg geben; bei den einzelnen Funktionen wird hierauf verwiesen.
Als Schüler haben wir gelernt, dass das Quadrat einer beliebigen Zahl immer positiv ist:
24 = 4
(–2)2 = 4
Andersherum bedeutet dies, dass wir aus negativen Zahlen nicht die Wurzel ziehen können:
Bei den vier Grundrechenarten gibt es für alle Zahlen eine Umkehrung: Addition « Subtraktion und Multiplikation « Division. Sollte das bei Potenzieren « Wurzelziehen nicht gelten? Mathematikern ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.