Piecewise function — 101 discussions

  1. V

    Undergrad Can a piecewise function be written as a single equation without cases?

    hi, i have been working on an Options assignment, and i have this formula as one of my answers: X_{t}=\left\{\begin{array}{cc}X_{t-1},&\mbox{if } S_{t} < S_{t-1}\\aS_{t},& \mbox{if } S_{t}\geq S_{t-1}\end{array}\right where a is a constant. the question however asks for a "single...