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Memory not cleared

• To: mathgroup at smc.vnet.net
• Subject: [mg12736] Memory not cleared
• From: "William B. Marks" <bmarks at helix.nih.gov>
• Date: Thu, 4 Jun 1998 02:52:19 -0400
• Sender: owner-wri-mathgroup at wolfram.com

When I use Fourier, Save or Plot on a big list (100,000 numbers), 
memory usage increases, and doesn't decrease when the command is
completed: <<list;
f=Fourier[list];
Plot[Abs[f]]; (*might already run out of memory here, depending on the
number of points that are plotted*)
Save[f]; (* It cannot complete this command even if Plot is ommitted ;
Kernel has 40 MB of memory*)

Any ideas?