Re: ListIntegrate
- To: mathgroup at smc.vnet.net
- Subject: [mg67930] Re: ListIntegrate
- From: albert <awnl at arcor.de>
- Date: Mon, 17 Jul 2006 06:51:46 -0400 (EDT)
- References: <e959tq$e40$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
granto wrote: > I swear that this function works differently every time I try to use it. > I'm using Mathematica 5.0.0.0. > > > <<NumericalMath`ListIntegrate` > > *** sometimes this gives me a write error, sometimes it doesn't. Same > command from the same notebook. > > x=Import["x.dat"] > Out= {{0.47725, 6.3245}, {0.71332, 73.3725}, {0.97786, 65.4579}, {1.10302, > 104.206}}, etc...... > > When I enter > > Listintegrate[f1,1] > > It either just gives me the answer in the Output, or just repeats what I > said, simply expanding the list, e.g. > > Out= Listintegrate{{0.47725, 6.3245}, {0.71332, 73.3725}, {0.97786, > 65.4579}, {1.10302, 104.206}} > > Last night, it was doing this. Today, with the same notebook, it's giving > me the answers. Seems like a path issue, but I'm new to Mathematica. Any > help??? Thanks, grant for me it looks like sometimes you forget to evaluate the cell that contains: <<NumericalMath`ListIntegrate` Make sure you evaluate it every time you start a new session (you might want to make the cell an initialization cell so you don't forget to). To confirm this guess evaluate: Context[ListIntegrate] when when ListIntegrate does not work. If you see Global` as output instead of NumericalMath`ListIntegrate` my guess is right and you will need to: Remove[ListIntegrate] and load the package: <<NumericalMath`ListIntegrate` hth, albert