Re: Re: branch of (-1)^(1/3)
- To: mathgroup at smc.vnet.net
- Subject: [mg94588] Re: [mg94559] Re: branch of (-1)^(1/3)
- From: Murray Eisenberg <murray at math.umass.edu>
- Date: Wed, 17 Dec 2008 06:31:42 -0500 (EST)
- Organization: Mathematics & Statistics, Univ. of Mass./Amherst
- References: <ghtjcj$r7f$1@smc.vnet.net> <200812141236.HAA10144@smc.vnet.net> <gi5jru$pto$1@smc.vnet.net> <200812160735.CAA13395@smc.vnet.net>
- Reply-to: murray at math.umass.edu
My only reason for my posting about finding the tutorial is the following: Often in this group you'll find somebody stating something like, "You can learn what you asked about by looking at the Documentation Center page tutorial/whatever." And often such a statement is followed by a reply asking, "But how was I supposed to know to look at that tutorial?" So I was just pointing out how helpful the documentation is -- that at least in this case (and many others, but not all) -- one can get to the desired tutorial. No intended reflection upon your abilities to do a search! slawek wrote: > U=BFytkownik "Murray Eisenberg" <murray at math.umass.edu> napisa=B3 w wia= domo=B6ci > news:gi5jru$pto$1 at smc.vnet.net... >> And finding that tutorial is not difficult even if you don't know it's= >> precise title: in the Documentation Center, just search on "branch" or= >> "multiple values". > > Actually the solution is to redefine Power function in this way: > > Unprotect[Power] > Power[x_?Negative, Rational[p_, q_?OddQ]] := -(-x)^(p/q) > Protect[Power] > > This is the answer from Technical Support Wolfram Research, Inc. > > As you see it is not quite RFTM FAQ-related question as you think at > University of Massachusetts, dear Murray. > > And yes - I have got a HP PC with working F1-key. And yes - I had searc= hed. > And I found nearly nothing - some trivial "problems" from texbooks on a= very > very elementary level. > > And yes - I like use Google. But the Google has nothing about the quest= ion. > > slawek > > -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305
- References:
- Re: branch of (-1)^(1/3)
- From: "sjoerd.c.devries@gmail.com" <sjoerd.c.devries@gmail.com>
- Re: branch of (-1)^(1/3)
- From: "slawek" <human@site.pl>
- Re: branch of (-1)^(1/3)