Hi! On 16 Nov., 10:08, Chappman <[email protected]> wrote: > HI folks, > > In Sagemath I am trying to compute this > > a=[1,1] > > b=[4,3] > > b-a=[3,2]
[1,1] in Python (thus, also in Sage) is a list. Lists can't be added or subtracted. What you probably want is a vector: sage: a = vector([1,1]) sage: b = vector([4,3]) sage: b-a (3, 2) Best regards, Simon > the answer I want is b-a=[3,2] but in sage i come up with a type > Error: unsupported operand type(s) for -: 'list' and 'list'. > > Is there any way of rectifying this problem and so that I can compute > b-a ? > > Kind Regards > Chappman -- To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
