https://dave.autonoma.ca/blog/2019/08/06/typesetting-markdown-part-7/ This installment tackles a cost-benefit analysis problem comparing electric to gasoline-powered vehicles, calls into R for amortization, typesets math and a repayment schedule, continues to explore the separation of content from presentation, and expands on the shell scripts from previous parts. Feedback is welcome, especially about the ConTeXt-related items (see Style and Math near the bottom). Thanks for reading!