Re: (-1)^(1/2.) on Mathematica!
- To: mathgroup at smc.vnet.net
- Subject: [mg107547] Re: (-1)^(1/2.) on Mathematica!
- From: "Nasser M. Abbasi" <nma at 12000.org>
- Date: Tue, 16 Feb 2010 03:55:09 -0500 (EST)
- References: <hlb8qi$rm5$1@smc.vnet.net>
"Legendre" <sinankapcak at gmail.com> wrote in message news:hlb8qi$rm5$1 at smc.vnet.net... > Hi, > > I tried the expression (-1)^(1/2.) on Mathematica 7.0, I got > 6.12323*10^(-17) + 1. i. By using //N there is no problem. But using 2. it > gives a wrong answer. > > Sinan > Which is the answer that is wrong? In[29]:= Chop[(-1)^(1/2.)] Out[29]= 1.*I In[30]:= (-1)^(1/2) Out[30]= I --Nasser