An "autorating" system uses peer ratings to award marks to individual students in team assignments. This is a simple tool intended to help educators streamline the calculation process of autorated marks, available for download at https://bitbucket.org/liantze/autorating-calculator. You will need a Java Runtime Environment (> 1.6) to run it.
This template contains all information I would personally log after a dive. Feel free to use and /or modify it to create your own custom dive log book.
If you are not familiar with LaTeX and would like to make minor changes, drop me a comment on my blog at http://texblog.org/2015/07/22/diy-scuba-diving-log-book/
This problem is an applied optimization problem. The problem is to minimize
the area of the triangle formed by a tangent line to the function y = 1⁄9 x2.
The triangle is defined by the origin, the x-intercept of the tangent line, and the
y-intercept of the tangent line. Only triangles formed in the first quadrant are
of concern.