Re: Chop in Mathematica 8.0.1
- To: mathgroup at smc.vnet.net
- Subject: [mg117543] Re: Chop in Mathematica 8.0.1
- From: David Bailey <dave at removedbailey.co.uk>
- Date: Tue, 22 Mar 2011 05:07:47 -0500 (EST)
- References: <im7c6c$74$1@smc.vnet.net>
On 21/03/2011 11:18, Andrzej Kozlowski wrote: > Chop does not seem to work properly in Mathematica 8.0.1: > > f[a_] := 2 I Pi Sin[a]/a > > In[2]:= f[1.] > > Out[2]= 0. + 5.287118128162912*I > > In[3]:= Chop[%] > > Out[3]= 0. + 5.287118128162912*I > > This is with > > In[4]:= $Version > > Out[4]= 8.0 for Mac OS X x86 (64-bit) (February 23, 2011) > > Mathematica 7.01 returns 5.287118128162912*I as expected. > > Can anyone confirm it? At the moment I can't see any simple work around... > > Andrzej Kozlowski > The same problem happens with 64-bit Windows amd 8.0.1 . This seems to be deliberate - see the first item under "Possible Issues" in the help for Chop. David Bailey http://www.dbaileyconsultancy.co.uk