
Re: positive exponents
Posted:
May 13, 1995 1:20 PM


>John Forrest wrote: > >> The problem I thought I'd run into in the classroom, which has >> NOT occurred, is the confusion of sin^1(x)that is, arcsin(x)with >> 1/sin(x)that is, csc(x). > >Boy, I've run into this! At least a third of my Algebra II Trig students >have asked about this in class. A gentle reminder usually works, but they >wish 1 had not been set up to mean inverse function as well as reciprocal. > And I wonder why as well; there are plenty of other unused symbols. I would >have suggested an upsidedown f to stand for finverse. > >Ben :D
A backwards arrow (<) in superscript is often used for function inverse in mathematical papers. Why not adopt it for high school?
==================================== Judy Roitman, Mathematics Department Univ. of Kansas, Lawrence, KS 66049 roitman@math.ukans.edu =====================================

