Major progress on Regex Basic lab; ready for testing
Updated Sympy solutions.
Merge pull request #413 from insertinterestingnamehere/sympy

Updated Sympy solutions.
Added empty arnoldi iteration lab.
Added empty arnoldi lab to vol1.tex
Added an initial outline for the content of the arnoldi lab.
Added some more ideas to the initial outline for the Arnoldi iteration
lab.
Added another ide to the arnoldi lab.
Finalized outline for Arnoldi lab.
Initial draft of the preface for the Arnoldi lab.
Added another idea to the outline for the arnoldi lab.
Removed old Krylov lab.
Update Vol1.tex for removal of old Krylov lab.
Added the first section to the Arnoldi lab.
Added solution to first problem. Also fixed some typos in the pseudocode.
Added section on finding eigenvalues via Arnoldi Iteration.
Added first Lanczos Problem.
Added ghost eigenvalues problem
Added DFT eigenvalue problem to Arnoldi Lab.
Finished removing manual problem numbering from solutions file for arnoldi
lab.