Hello, Please see my published test notebook at: http://www.sagenb.org/home/pub/1408/
variable of integration must be a simple or subscripted variable I can get this form integrating properly, and resulting with expected gamma(nu)/(alpha^nu*s) f(x) = (mu/s)*x**(nu*mu-1)*exp(-alpha*x**mu) s = integrate(f(x),(x,0,infinity)) However when I do two simple substitutions with: f(D) = f(x) / Dn x = D/Dn p = integrate(f(D),((D/Dn),0,infinity)) This yields with an error Maxima ERROR: defint: variable of integration must be a simple or subscripted variable. defint: found D/Dn -- an error. To debug this try: debugmode(true); The two form is different than each other by just one variable substitution, and they should yield the same result. Any ideas how to fix this issue? 2nd question: Is there a way to combine assumptions? Can I make an assumption like assume(mu, 'positive integer')? Thanks. -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
