On Sun, May 31, 2009 at 6:28 AM, jyr <jyr2...@googlemail.com> wrote: > > Hi, > > There is something strange going on with the simple sqrt() function: > > sage: sqrt(2) > sqrt(2) > sage: sqrt(2.0) > 1.41421356237310 > sage: sqrt(2,prec=100) > 1.4142135623730950488016887242 > > but: > > sage: sqrt(2.0,prec=100) > --------------------------------------------------------------------------- > TypeError Traceback (most recent call > last) > ... > TypeError: sqrt() got an unexpected keyword argument 'prec' > > > > You also get the above result if you use a symbolic variable instead, > eg x=2.0 > Similarly: > > sage: sqrt(pi) > sqrt(pi) > sage: sqrt(pi,prec=100) > --------------------------------------------------------------------------- > TypeError Traceback (most recent call > last) > ... > TypeError: sqrt() takes no keyword arguments > > The latter used to work in 3.4.2 and is now broken in the latest 4.0 > 32-bit Intel build. > > I suppose this should work tranparently or should the sqrt() function > be used in a different way?
I recommend doing this: sage: N(sqrt(pi), prec=100) 1.7724538509055160272981674833 sage: sqrt(pi).numerical_approx(prec=100) 1.7724538509055160272981674833 -- William --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
