New Maxima user has problem

On Thu, Mar 13, 2008 at 1:07 PM, Barton Willis <willisb at unk.edu> wrote:
>   (%i5) subst(lambda([s], exponentialize(sinh(s))), sinh, %o3);
>   (%o5) (sin(x)*(%e^(y^2+x^2)-%e^(-y^2-x^2)))/2

This doesn't work in general, e.g.

     subst(lambda([s], exponentialize(sinh(s))), sinh, sinh(sin(x)))
            => (%e^-(%i*(%e^(%i*x)-%e^-(%i*x))/2)-%e^(%i*(%e^(%i*x)-%e^-(%i*x))/2))/2

You need something like

     subst(lambda([s], ''(exponentialize(sinh('s)))), sinh, expr)

            -s