1 \documentclass[letterpaper, 10pt]{article}
3 \usepackage[nosolutions,
4 author={W. Trevor King},
5 coursetitle={Physics 101},
6 classtitle={Recitation 1},
7 subheading={Chapter 1}]{problempack}
9 \usepackage{wtk_format}
11 \usetikzlibrary{calc,backgrounds}