-----maxima-bounces at math.utexas.edu wrote: -----
>(%i20)?factor(-hbar^2/(2*m)*diff(f(x),x,2)=E*f(x)-mu*x^4*f(x));
>Maxima?encountered?a?Lisp?error:
>Error?in?MACSYMA-TOP-LEVEL?[or?a?callee]:?MACSYMA-TOP-LEVEL?[or?a?callee]
With a fresh Maxima 5.15.0 + GCL , it works:
(%i1) factor(-hbar^2/(2*m)*diff(f(x),x,2)=E*f(x)-mu*x^4*f(x));
(%o1) -(hbar^2*('diff(f(x),x,2)))/(2*m)=f(x)*(E-mu*x^4)
If you would, restart Maxima and try factor(-hbar^2/(2*m)*diff(f
(x),x,2)=E*f(x)-mu*x^4*f(x)).
Tell us what happens. Thanks for the report.
Barton