Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!asuvax!ncar!elroy.jpl.nasa.gov!sdd.hp.com!uakari.primate.wisc.edu!crdgw1!uunet!lll-winken!aunro!ukma!vlsi!ulkyvx.bitnet!jecome01 From: jecome01@ulkyvx.bitnet Newsgroups: sci.electronics Subject: Re: Why sqrt(-1)=j and not sqrt(-1)=i Message-ID: <1991May3.134044.287@ulkyvx.bitnet> Date: 3 May 91 17:40:44 GMT References: <1139@helps.cactus.org> Organization: University of Louisville Lines: 11 In article <1139@helps.cactus.org>, jhoward@helps.cactus.org (James Howard) writes: > > In math the sqrt(-1) is representated by the letter i. In electronics > why is the letter j used to represent the square root of -1? > > Thanks for any replies, posted or Emailed. > The letter i is commonly used to represent current, thus inorder to keep the confusion to a minimum, the letter j is used instead. No big deal.