Martin Geisler Online

There’s been a lot of talk about Echelon lately in the Danish press, after the EU made a report that established, that Echelon does indeed exist, and that it is aimed at the individual citizens.

So I’ve taken a look at GnuPG and have made a new public key. I’ve revoked the old key, as the email-addresses was obsolete.

If you believe that I’m the one I’m telling you I am (look here for a photo), then please sign my key. You should only sign the key, if you are certain that it does indeed belong to me. When I say “me”, I mean the person that’s maintaining these pages (which should be me, unless someone has stolen my password :-).

On the right, you’ll see my current web-of-trust. It shows that I’ve signed Cookies key. As I sign other keys, they’ll be added to the web, and as other sign my key, they’ll be added too. The idea is, that one should have a web of trusted keys, so that I can judge if a key is trustworthy from it’s location in my web-of-trust.

For you to sign my key, you should first obtain it from a keyserver or look here. The ID is F7F6B57B and the fingerprint is: FF54 E085 D1FD CFF2 99BF 7D70 76EB 310E F7F6 B57B

After you’ve signed it, you can either upload it again to the keyserver, or you could send it to me. I’ll then update my web-of-trust.

I’ll be happy to sign your key too, if I can be convinced, that it really belongs to you.

I had an exam in Physics today, and it went very well. Actually it was perfect — I got the grade 13 on the Danish scale :-D 13 is the maximum, so I couldn’t be happier about this!

I must say, that I didn’t expect such a high score. I knew that I had done well after the examination, but I was really surprised when my teacher and censor told me the great news. Next is Danish — it’s six days from now.

The last few days I’ve been busy reading for the exam in Physics this Thursday. I’ve not done this alone — Cookie has been with me, and we’ve had a great time!

It really helps when there’s someone there to motivate you, although we’ve cought ourselves discussing Linux a couple of times :-)

I’ve been playing a lot with MetaPost lately. I really like the way you construct your figures — it’s clean, precise and mathematical.

But there’s one problem: I now have to first run mpost to generate the figures, and then dvips to put them into my document. I can’t just view the figures in xdvi together with the text, as there’s some problems with the fonts used in the figures. The only good way to view it is in gv, which means that I also have to run dvips.

But this Makefile solves that — I can now just run make, and then it will re-run all necessary programs:

#
# This Makefile re-runs all the necessary programs, so that the
# PostScript-file is updated whenever the LaTeX- or MetaPost-files
# change.
#
# Martin Geisler <[email protected]> — Just use it :-)
#
all: main.ps
.mpost: *.mp
    TEX=latex mpost -interaction nonstopmode $?
    touch .mpost
.gnuplot: *.gnuplotrc *.data
    gnuplot $?
    touch .gnuplot
%.dvi: %.tex
    latex ‘\nonstopmode\input $<’ && latex ‘\nonstopmode\input $<’
%.ps: .mpost %.dvi
    dvips $*.dvi -o

(Please remember that there should be a tab in front of the command-lines — those that does not start with a blue word.)

As I’ve never written a Makefile before, I’m pretty certain that there’s something in it, that can be done in a better way. But at least this one works for me :-)

If you can suggest some improvements, then please write me.

I’ve just finished my final written exam! I’ve spend five hours trying to write a Danish essay, and I think the result was pretty good.

I used my dads notebook with Windows and Word. I did this, just to remind myself of why it is, that I’ve spend countless hours reading manuals and books for LaTeX. Why have I spend entire evenings trying to achieve a particular effect in LaTeX? Now that I’ve started to use Metapost, I’ve also had to read the manual for that — it’s large but really good. The question remains: why do I do it.

The answer just occurred to me today: Word is full of bugs! It’s a faulty, PITA-program! It crashed on my today, even though I didn’t do anything fancy. I wasn’t playing with a lot of OLE-objects, nor was I trying to do anything else. I was just writing an essay with perhaps three different fontsizes. But when I tried to change the size of the skip after paragraphs, it just died. And it did this several times.

So, luckily there won’t be a next time, but if I ever have to write something important on a computer, I’ll use LaTeX. It’s the only program that I know of, that if reliable. It might be a little difficult to do some of the more advanced things, but if you’re just writing a plain essay, then it’ll never let you down. It was only because it was easier for me to transport the notebook that I used it instead of my normal machine.