Additive inverses of lists?
- To: mathgroup at smc.vnet.net
- Subject: [mg95747] Additive inverses of lists?
- From: Erik Max Francis <max at alcyone.com>
- Date: Mon, 26 Jan 2009 05:01:27 -0500 (EST)
Is this a known no-no, or did I find something new? (I obviously
originally tried it in the graphical front end; I'm only doing it from
the command line interface for demonstration.)
max@boron:~% math
Mathematica 7.0 for Linux x86 (32-bit)
Copyright 1988-2008 Wolfram Research, Inc.
In[1]:= StreamPlot[-{x, y}, {x, -3, 3}, {y, -3, 3}]
zsh: segmentation fault math
Interestingly enough if the StreamPlot is not involved, nothing but happens:
In[1]:= -{a, b}
Out[1]= {-a, -b}
And plotting {-x, -y} instead of -{x, y} works fine:
In[1]:= StreamPlot[{-x, -y}, {x, -3, 3}, {y, -3, 3}]
Out[1]= -Graphics-
--
Erik Max Francis && max at alcyone.com && http://www.alcyone.com/max/
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