Univariate problems

This chapter looks at problems in which there is just one unknown. These are called univariate problems. Such problems illustrate pitfalls, alternatives, and opportunities before we move on to the next five chapters with multiple unknowns (that obscure the pitfalls, alternatives, and opportunities).

The chapter begins with a section on crosstalk, ``Segregating P and S waves'' that is omitted here but may be found in SEP-61 page 365.