# Revision history [back]

var('t,x3')

p1= -3+2.5tanh(2.t)+(3.19sech(x3)-2.69)I

p2= -3+2.5tanh(2.t)-(3.19sech(x3)-2.69)I

p3=-4

diagAbar= diagonal_matrix(Ta.[p1,p2,p3])

dAbar=diagAbar.subs(t=0);dAbar

Playing around with dAbar I found that:

TdiagAbar=dAbar.conjugate()

works, but

TdiagAbar=dAbar.transpose()

and

TdiagAbar=dAbar.conjugate()+dAbar

do not work. Sorry, I didn't follow much of what link said. I do a lot of symbolic math with symbolic variables such as with t and x3 above. I know MATLAB well and Mathematica somewhat. I would prefer to support Sage. Thanks for your help.

nonlinear

 2 code tmonteil 25478 ●29 ●181 ●475 http://wiki.sagemath.o...

var('t,x3')

var('t,x3')
p1= -3+2.5tanh(2.t)+(3.19sech(x3)-2.69)I -3+2.5*tanh(2.*t)+(3.19*sech(x3)-2.69)*I
p2= -3+2.5tanh(2.t)-(3.19sech(x3)-2.69)I p3=-4 -3+2.5*tanh(2.*t)-(3.19*sech(x3)-2.69)*I
p3=-4
diagAbar= diagonal_matrix(Ta.[p1,p2,p3]) dAbar=diagAbar.subs(t=0);dAbardiagonal_matrix(Ta.[p1,p2,p3])
dAbar=diagAbar.subs(t=0);dAbar


Playing around with dAbar I found that:

TdiagAbar=dAbar.conjugate()

TdiagAbar=dAbar.conjugate()


works, but

TdiagAbar=dAbar.transpose()

TdiagAbar=dAbar.transpose()


and

TdiagAbar=dAbar.conjugate()+dAbar

TdiagAbar=dAbar.conjugate()+dAbar


do not work. Sorry, I didn't follow much of what link said. I do a lot of symbolic math with symbolic variables such as with t and x3 above. I know MATLAB well and Mathematica somewhat. I would prefer to support Sage. Thanks for your help.

nonlinear