I just felt like writing up two more problems that were looking good on paper. This PDF also shows me messing around with some equation references in LaTeX.

Solutions (PDF).

Enjoy!

2009-07-18

I just felt like writing up two more problems that were looking good on paper. This PDF also shows me messing around with some equation references in LaTeX.

Solutions (PDF).

Enjoy!

2009-07-18

I’m (re(re))taking the second course on calculus during the summer at the university. It’s going much better this time around, which is a good thing.

I did have problems with one problem (har), and I couldn’t make sense of it on my messy notebook, and I didn’t feel like doing the entire problem over again. The only thing wrong with my solution is that the answers in the back of the book said term1 – term2, while I kept getting term2 – term1 in my notebook, so I wasn’t too far off but still couldn’t get it right — couldn’t find the erring minus sign. All I really felt like was doing some programming, which I enjoy, but what would I code if I have no software needs?

Then I thought: I need to get a more structured view of this problem. Why not write it up in LaTeX and make it into a nice, good-enough-to-print, PDF solution. That way, I will get some practice writing LaTeX documents (it’s been a few months, sadly), *and* writing LaTeX is pretty much programming in a way, so I get to practice LaTeX, scratch my coding itch, and maybe find out where that offending minus sign went.

Sure enough, it worked pretty well.

Solution to problem 6.2.9 in *Calculus, A Complete Course* (Sixth Edition).

I want to point out that this PDF was produced entirely using Free and Open-Source Software (FOSS):

- texlive LaTeX distribution (tex->PDF compiler: pdflatex/pdftex)
- GNU Emacs as the LaTeXt editor
- Ubuntu Linux to run Emacs and tex compiler
- Totem to play music while writing up the solution
- Grip + oggenc to rip CDs to Ogg Vorbis
- Ogg Vorbis media container format
- libVorbis 1.2.0 used by oggenc (darn you Ubuntu for not updating libVorbis since 2007)
- and so forth.

It works, folks!