|Bill Allombert on Tue, 11 Jan 2000 15:17:25 +0100 (MET)|
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|Plotting problem with y scaling|
Helllo, I try to draw the curve y=1/(x^2+x^3) , but I cannot get a clean output, the infinites values in 0 and -1 have a disatrous effect on the output. With ploth the scaling is bad. I have not found any other possibilities to change the y scaling that using the rather complex plotrecth function. I try plotrecth as follow plotinit(0,1,1,1); plotscale(0,-5,5,-10,10); plotrecth(0,x=-5,5,1/(x^2+x^3),4); plotdraw([0,0,0]) The result is better but when I come to printing with plotinit(0,1,1,1); plotscale(0,-5,5,-12,12); plotrecth(0,x=-5,5,1/(x^2+x^3),4); psdraw([0,0,0]) Ghostview complain on the pari.ps file , Unrecoverable error: limitcheck in lineto on these kind of line -1609366 619 lineto -1593332 620 lineto so it seems that pari attempt to draw line far outside the page. Does a nice workaround exists ? This problem is not specific to PARI, any plotting system has difficulty with asymptots. Does it exist a simple solution to specify the y scaling ? Bill.