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, 19 Mar 2018 11:03:59 -0500Finding the matrix of a linear affine transformation and its inversehttp://ask.sagemath.org/question/41629/finding-the-matrix-of-a-linear-affine-transformation-and-its-inverse/How do i get the matrix representation of an affine transformation and it's inverse in sage?
I am more so interested in doing this for random affine transformations as i am using them in a multivariate cryptography scheme but for example the following affine transformation over GF(3)
[1 0 0 2 0 2] [1]
[2 2 1 1 2 0] [1]
[2 0 0 2 2 2] [0]
x |-> [2 2 0 1 1 1] x + [1]
[1 0 2 0 2 0] [0]
[0 0 0 2 0 2] [2]DalvirMon, 19 Mar 2018 11:03:59 -0500http://ask.sagemath.org/question/41629/transformation to lines and circleshttp://ask.sagemath.org/question/35516/transformation-to-lines-and-circles/I'd like to take a circle and apply a transformation to it (such as a reflection or a translation).
For instance, if T1 is translation 1 unit right and
c1 = circle((0,0),1),
I'd like to be able to plot T1(c1) (the image of c1 under T1, which is the circle with new center (1,0)).
How can I do this? Daniel LThu, 10 Nov 2016 21:34:40 -0600http://ask.sagemath.org/question/35516/