ASKSAGE: Sage Q&A Forum - Latest question feedhttp://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Mon, 20 Feb 2012 22:20:27 -0600How can one use maxima kummer confluent functions in sagehttp://ask.sagemath.org/question/8727/how-can-one-use-maxima-kummer-confluent-functions-in-sage/Hi, here is my piece of code
var('x,m')
assume(m, 'integer')
y = function('y', x)
desolve(diff(y,x,2) + 2*x*diff(y,x) - 4*m*y, y,contrib_ode=true,ivar=x)
which yields
[y(x) == k1*kummer_m(-m, 1/2, -x^2) + k2*kummer_u(-m, 1/2, -x^2)]
Internet(Wikipedia) sais that the solutions to this differential equation are the Kummer functions or Confluent_hypergeometric_functions. I now want to know how I can use these functions in sage since they must be defined in maxima.
Thanks in advancegod.oneMon, 20 Feb 2012 22:20:27 -0600http://ask.sagemath.org/question/8727/Defining symbolic functions in Sage and importing from Maximahttp://ask.sagemath.org/question/8651/defining-symbolic-functions-in-sage-and-importing-from-maxima/Still following [this thread](http://ask.sagemath.org/question/1077/symbolic-expectations-and-double-integrals), I would like to know how to
1. import in Sage a function defined in Maxima?
In my context, I'm interested in Maxima's pdf_normal so I started to
maxima("load(distrib)");
but how do I proceed from there?<br/>
2. What is the equivalent of Maxima's := symbolic function definition?Green diodSat, 21 Jan 2012 03:44:26 -0600http://ask.sagemath.org/question/8651/