This is at http://sagetrac.org/sage_trac/ticket/2425 awaiting review.
Jason John Cremona wrote: > +1. For calculus, gradient is the good term. For a Jacobian > function I would expect the input to be a list/sequence of functions > and the output a matrix. > > John > > On 29/02/2008, didier deshommes <[EMAIL PROTECTED]> wrote: > >> On Fri, Feb 29, 2008 at 1:58 PM, Jason Bandlow <[EMAIL PROTECTED]> wrote: >> > >> > Hi, >> > >> > Currently, if f is a multi-polynomial, the call f.jacob() returns the >> > list of partial derivatives of f with respect to the ring generators: >> > >> > sage: R.<x,y,z> = PolynomialRing(QQ) >> > sage: f = x^4 + y^3 + z^2 + x*y*z >> > sage: f.jacob() >> > [4*x^3 + y*z, 3*y^2 + x*z, x*y + 2*z] >> > >> > >> > I'd like to change the name to gradient. Another possibility is changing >> > the name to 'jacobian', but I think it's likely that more people (eg >> > calculus students) will recognize the term 'gradient' and not 'jacobian' >> > than vice-versa. And who talks about the Jacobian of a single function >> > anyway? :) >> >> >> +1 for the "gradient" name change. >> >> >> didier >> >> >> > >> >> > > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
