Multiplication of numerical matrices



Thank you for the interface.
On my computer, I have 134 sec vs 28 sec.

load("lapack") works well in command line
Maxima and in XMaxima. In wxMaxima,
lapack files are read for few seconds.
Then wxMaxima hangs:
    the cell containing line load("lapack") is "active"
    (there is a box around the bracket of the cell)
    while Maxima process does nothing.