Corrections and Clarifications to the ODE labs in Vol4
A simple typo fix.
Fixed a formula error and removed a problem that would be hard to grade.
Cleared up a notational conflict on how to apply the initial conditions
and how to apply different higher-order ODE solving methods.
Added a *very* brief explanation tying the IVP solving methods to
numerical quadrature.
Merge branch 'master' into ivp
Fixed math typo in the description of the Runge-Kutta 4 algorithm.
Merge branch 'master' into ivp
Removed some artifacts from a merge.
Fixed another math error.
Updated the solutions to the IVP lab.
Some variable name changes in the new ivp solutions.
Some spacing changes.
Restructured line breaks in the weight loss tex file.
Standardized labels in the wloss lab.
Revised style of example code in wloss lab.
Fixed undefined references.
More code formatting fixes and some typo fixes.
got rid of dice example and web browser. Rewrote Backpack example.
Code formatting fixes.