Dear Class, The same instructions apply to maple 9.5, 11, 12 and 13. To use maple 12 on the local unix systems, invoke it by command line xmapleV12 & or xmapleV12.01 & To use maple 12 with the classic window interface [no java], invoke it by the command line xmapleV12 -cw & or xmapleV12.01 -cw & After starting maple 12, set the OPTIONS on the tool menu as follows: Display --> Input display --> Maple Notation Display --> Output display --> 2D-Math Notation Interface --> Default format for new worksheets --> Worksheet Apply Globally When working with maple 12, you should see red text on input and blue text on output. The linalg package is supposed to work in maple 12. But you cannot load both LinearAlgebra and linalg and expect both to work. Choose one or the other. If you need to run both in a session, then launch a separate maple window for each, to get a separate maple engine for each package. Example 1: with(linalg): A:=matrix([[1,2],[0,3]); eigenvects(A); Example 2: with(LinearAlgebra): A:=Matrix([[1,2],[0,3]); Eigenvectors(A); To set up maple 12 on linux, windows and Mac OS/X systems, follow the advice above. To run the classic window interface under 32-bit windows, launch the application "cwmaple" located in the win.bin subdirectory of the maple12 installation in Program Files. The bare-bones terminal interface maple 12 is launched on a unix system as follows: 33 sunward> mapleV12.01 |\^/| Maple 12 (SUN SPARC SOLARIS) ._|\| |/|_. Copyright (c) Maplesoft, a division of Waterloo Maple Inc. 2008 \ MAPLE / All rights reserved. Maple is a trademark of <____ ____> Waterloo Maple Inc. | Type ? for help. > with(linalg): > A:=matrix([[1,2],[0,3]]); [1 2] A := [ ] [0 3] > eigenvects(A); [3, 1, {[1, 1]}], [1, 1, {[1, 0]}] > Best regards, Grant Gustafson