Re: "+ -" in an output line?
- To: mathgroup at smc.vnet.net
- Subject: [mg52289] Re: [mg52275] "+ -" in an output line?
- From: "David Park" <djmp at earthlink.net>
- Date: Sun, 21 Nov 2004 07:23:25 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
It's an actual formatting bug in Series. WRI ought to fix it. In the
meantime you have to think of it as +(-I q s).
It goes away if you use Normal.
Series[-I q s - I p Sqrt[K1^2 - s^2], {s, 0, 1}]
% // Normal
David Park
djmp at earthlink.net
http://home.earthlink.net/~djmp/
From: AES/newspost [mailto:siegman at stanford.edu]
To: mathgroup at smc.vnet.net
The input
In[13]:=
Series[-I q s - I p Sqrt[K1^2 - s^2], {s, 0, 1}]
gives
Out[13]=
-I Sqrt[K1^2] p + - I q s + O[s^2]
whereas
In[14]:=
Series[-I q s - I p Sqrt[K1^2 - s^2], {s, 0, 1}] // Normal
gives
Out[14]=
-I Sqrt[K1^2] p - I q s
What's that "+ -" doing in Out[13] ? Is this normal?