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MathGroup Archive 2007

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Re: weird behavior when plotting multiple functions in 6.0

  • To: mathgroup at smc.vnet.net
  • Subject: [mg76135] Re: weird behavior when plotting multiple functions in 6.0
  • From: ucervan at gmail.com
  • Date: Wed, 16 May 2007 05:49:24 -0400 (EDT)
  • References: <f2btov$iga$1@smc.vnet.net>

You can use:

f[x_] = {Sin[x], Cos[x]};
Plot[Evaluate@f[x], {x, 0, 4*Pi}]

The reason for the current behavior is that in V6.0 the plotting
functions interpret a vector valued functions as a unique function.
Try:

f[x_] = {Sin[x], Cos[x]};
Plot[Tooltip[f[x], "f[x]"], {x, 0, 4*Pi}]

You will see a tooltip mark on both curves since they are both
represented by f[x].

Note that Table is as well interpreted as a vector valued function,
compare:

Plot[Table[x^n, {n, 1, 10}], {x, 0, 1}]

Plot[Evaluate@Table[x^n, {n, 1, 10}], {x, 0, 1}]





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