MathGroup Archive 1998

[Date Index] [Thread Index] [Author Index]

Search the Archive

What is this doing...?...

  • To: mathgroup at
  • Subject: [mg14766] What is this doing...?...
  • From: Mitch Padua <vpadua at>
  • Date: Sat, 14 Nov 1998 03:07:58 -0500
  • Organization: California State University, Fresno
  • Sender: owner-wri-mathgroup at

I've having some trouble interpreting a graph I receive in mathematica,
maybe someone can help?  Here's what I have:

Normal[Series[Sin[x], {x,0,#}]]& /@ {1,3,5,7}
f[#]& /@ {arg1, arg2, arg3}
Join[{a,b,c}, {d,e}]
plotts[fx_, a0_: 0, {x_,a_,b_}, k_List, opt___]
:=Plot[Evaluate[Join[Normal[Series[fx,{x,a0,#}]]& /@ k, {fx}]], {x,a,b},

now I type the command to graph:

plotts[Log[x+1], {x, -.99,2}, {1,3,25}, PlotRange->{-5,2}]

and all is well however when I change the 25 to 30 I get a different
graph, why?  What is going on here?  I believe this is a Taylor series
or something, but can someone explain to me when I change the
plotts[Log[x+1], {x, -.99,2}, {1,3,25}, PlotRange->{-5,2}] to
plotts[Log[x+1], {x, -.99,2}, {1,3,30}, PlotRange->{-5,2}] I get a
different graph?  I must admit I've only used mathematica for about 15 an explanation as to why this graph is changing would
really help.


____/|  Vincent M. Padua  (vpadua at \ o.O|
 =(_)=  "Thou shalt not follow the NULL pointer for
   U     chaos and madness await thee at its end."

  • Prev by Date: What is this doing...?...
  • Next by Date: Re: defining "regions"
  • Previous by thread: What is this doing...?...
  • Next by thread: Re: What is this doing...?...