On Nov 1, 4:59 am, "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> wrote:
Hi,
> I want to make a simple plot for a talk. As an experiment I try
>
> plot(x^2,2,10) (*)
>
> and it works as expected. So happily I go for the real thing
>
> plot(zeta(x),2,10) (**)
>
> Unfortunately I get a long list of exceptions but no clear indication
> what the problem is.
>
> plot(zeta,2,10) (*)
>
> yields an empty plot.
>
> plot(real(zeta(x)),2,10)
>
> gives again exceptions.....
>
> After several tries I finally find something that works
>
> plot(lambda x:real(zeta(x)),2,10) (**)
>
> In retrospect I can explain why this magic incantation makes sense.
> But I think many users will be baffled by the difference in
> complexity between (*) and (**). In Maple there is no difference
> between (*) and (**).
>
> This is sage 3.0.5. Released 2008-07-11.
Type plot? into a Sage session and you will see plenty of
documentation with examples. How is one supposed to know about syntax
otherwise? Sage is not a clone of MMA or Maple, so their syntax does
not work.
> Best regards,
> Michel
Cheers,
Michael
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