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Re: Is it a BUG?

• To: mathgroup@smc.vnet.net
• Subject: [mg11954] Re: [mg11903] Is it a BUG?
• From: Des Penny <penny@suu.edu>
• Date: Fri, 10 Apr 1998 01:03:43 -0400
• Organization: Southern Utah University
• References: <199804090433.AAA22057@smc.vnet.net.>

Hi Igor:

Plot has the attribute HoldAll.  You can see this with:

Attributes[Plot]

This means that it holds all its arguments unevaluated.  You can force
the evaluation of k by:
Plot[Evaluate[k],{x,-5,5}]

Cheers,

Des Penny


Igor Gribanov wrote:

> When I try to plot a number of functions like this:
> Plot[{x,x^2,x^4},{x,-5,5}]
>
> it works,
> but if I do it another way:
> k={x,x^2,x^4}
> Plot[k,{x,-5,5}]
>
> then it doesn't plot the graphics.
> Is it a bug or not?
>
> Sincerely,
> Igor Gribanov
> http://www.geocities.com/SouthBeach/Palms/3050

• References:
  • Is it a BUG?
    • From: "Igor Gribanov" <nuc@hotmail.com>