[OS X TeX] magnification
Ross Moore
ross.moore at mq.edu.au
Sat Mar 1 02:05:39 CET 2014
Hello Juan,
On 01/03/2014, at 11:17 AM, juan tolosa wrote:
> Hi Herb,
>
> Yes, I am using plain TeX. I have just tried the following minimal example in the PC at work, and the \magstep1 is ignored. I tried the same file in the mac at home, and the \magstep1 works. In the PC I am using Te works within MikTeX 2.9.
Are you absolutely sure that it does not work?
The viewer may be rescaling, so you don't detect the difference so easily.
Test with \magstep3 or similar, where the change should be more pronounced.
Try printing the output both with and without the \magstep .
If none of these helps, one clue is that the TeXBook states:
"You cannot apply two different magnifications to the same document."
Furthermore, the \magnification "must be given before the first page
of output has been created."
So if your plain.fmt has already specified a \magnification, then a later
use does nothing.
I would doubt that MikTeX has done this; but stranger things have happened.
>
> Thank you,
> Juan
>
> %%%%%%%%%%%%%%%%%%%%%%
> \def\rect#1#2{\leavevmode\vbox{\hrule \hbox{\vrule
> height#1 \hskip#2 \vrule} \hrule}}
> \parindent=0pt
> \def \gradebox{\rightline{\rlap{\quad \rect{0.3in}{0.3in}}}}
> \def\samepage{\vfill\gradebox\smallskip\hrule height0.5pt\medskip}
>
> \magnification\magstep1
>
> \centerline{\bf Minimal example of ``magstep one.''}
>
> \medskip
> %________________________________________________________
> {\bf 1.}
> %
> %
> Prove that the function
> $$ f(x, y) = {x^2 \over x^2 + y^2} $$
> has no limit as $(x, y) \to (0,0)$.
> %
> Provide a {\it clear and complete argument}.
>
> \samepage
> %________________________________________________________________
>
> {\bf 2.}
> %
> Compute $f_{xx} + f_{yy}$ for the function $f$ given by the formula
> $$ f(x, y) = {1 \over x^2 + y} . $$
> %
> Provide clear, complete, and neat calculations.
>
> {\vfill\gradebox\eject\end}
>
> \bye
Certainly this works fine on a Mac.
Cheers
Ross
------------------------------------------------------------------------
Ross Moore ross.moore at mq.edu.au
Mathematics Department office: E7A-206
Macquarie University tel: +61 (0)2 9850 8955
Sydney, Australia 2109 fax: +61 (0)2 9850 8114
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