Hi, I want to find the solution of a system of coupled differential equations. Therfore I need the eigenvalues and vectors of a matrix D and their complex conjugates. short example: sage: D=matrix([[0,1],[-1,0]])
sage: EV=D.eigenvectors_left();EV [(-1*I, [(1, 1*I)], 1), (1*I, [(1, -1*I)], 1)] sage: EV[0][1][0] # first eigenvector (1, 1*I) sage: (EV[0][1][0]).conjugate() Traceback (most recent call last): ... AttributeError: 'sage.modules.free_module_element.FreeModuleElement' object has no attribute 'conjugate' sage: matrix(sage_eval(repr(EV[0][1][0]))).conjugate() [ 1 -I] Is there an easier way to get the result of the last row? Or is there an easy way to cast from and to vector and matrix types? Thank you in advance, Stefan -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
