Hello,

On Wed, Nov 11, 2015 at 3:16 PM, john_perry_usm <john.pe...@usm.edu> wrote:
> I looked at a sample chapter; I don't read much Polish at all, but some of
> it still makes sense. ;-) More seriously, I liked how some of the graphs are
> diagrammed (snake picture) but not too many and the typeface.

I'm really glad you liked it! That was one of our main ideas - to help
readers imagine the snake represented by the function (which is
complicated for high school student, but thanks to mathematical
package drawing it is as simple as drawing linear function). During
experiments few years back, we found that it makes the function
translations easier to remember and understand. We believe it helps
remember the rules when the students actually needs to use them,
because they have something to relate the theory to.

Probably this is why it took us 3.5 year to complete (well, lets say
at least some of it was spent on looking for publisher brave enough to
release math books with such illustrations). And yes, 3.5 years ago,
we started our work targeting Sage 4.8 (which was current by that
time) - and keeping the book up to date during this period was a quite
interesting task. We probably wouldn't be able to complete such a big
project without some server setup. We actually wrote mercurial hooks
that compiled whole book including running Sage and producing ready
made pdf when we entered [rebuild] into commit message - then it was
commited to same repository so we could diff both pdf, LaTeX and Sage
outputs on version updates or text updates. SageTeX also helped us a
lot, because almost all results and figures were made real-time, so
always up to date and matching what the student will get.

> Can I ask what typeface that is?

Of course! We used Palatino clone (more exactly it is URW Pal­la­dio L
with true Small Caps and Old Style Figures for text and Lining Figures
for tables, as provided by mathpazo LaTeX package). The sans family is
provided by Bera font (Bitstream Vera clone, as provided by berasans
LaTeX package) - it is scaled by 0.86 to match x height of URW
Palladio L. Monospaced font is Luxi Mono, scaled by 0.95. There are
also some extra fonts for math symbols (mosty based on Euler font
family) and text symbols (some dingbats-like glyphs), but they are
used very rarely.

Regards,
Andrzej.

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