Re: branch of (-1)^(1/3)
- To: mathgroup at smc.vnet.net
- Subject: [mg94505] Re: branch of (-1)^(1/3)
- From: "slawek" <human at site.pl>
- Date: Mon, 15 Dec 2008 07:44:21 -0500 (EST)
- References: <200812121154.GAA27892@smc.vnet.net> <gi2uug$a6m$1@smc.vnet.net>
U¿ytkownik "Carl Woll" <carlw at wolfram.com> napisa³ w wiadomo¶ci news:gi2uug$a6m$1 at smc.vnet.net... > I assume you mean a simple way to choose the branch of a^(1/3), where a > is real. If so, you can use: > > Root[#^3-a&, 1] > > Carl Woll > Wolfram Research Great, so probably I would need something like this % /. {a_^3 -> Root[#^3 a&,1]} Thanks slawek
- References:
- branch of (-1)^(1/3)
- From: "slawek" <human@site.pl>
- branch of (-1)^(1/3)