Is there a Bug in Plot function ?
- To: mathgroup at smc.vnet.net
 - Subject: [mg5096] Is there a Bug in Plot function ?
 - From: "Christopher R. Carlen" <crobc at epix.net>
 - Date: Wed, 30 Oct 1996 22:03:44 -0500
 - Organization: epix.net
 - Sender: owner-wri-mathgroup at wolfram.com
 
I plotted a rather simple function via:
k = 1;
dk = 0.1;
W[x_] = 2 Cos[ 2 Pi ( dk/2 x ) ] Sin[ 2 Pi ( k x ) ]
Plot[ W[x,0] , {x,-20,20}, PlotStyle->{Thickness[0.002]} ]
and the resulting plot has severe problems, such as straight lines 
connecting points on the curve where the sinusoidal cycles that 
should have appeared simply were skipped.
I have made adjustments to the PlotStyle settings, and at times I 
can get some plots to be correct (various values of k and dk).  But 
there is little consistency, and most combinations are not plotted 
correctly.
Is there any solution or explanation to this problem ?  Also, I 
wonder if it is kernel specific.  I have Mathematica version 2.2.4 
student edition, for Windows.
_____________________
Christopher R. Carlen
crobc at epix.net           (please send mail here)
carlenC at cs.moravian.edu