isis-0.9.74 is available

isis-0.9.74 is now available from
   http://space.mit.edu/CXC/ISIS
   
(and at MIT, is now installed as the new isis-devel)   

New features include

  * Support for simultaneously fitting different
    functions to different datasets. For details,
    see the updated documentation for 'fit_fun'.

  * Ability to define fit-function parameters as
    arbitrary functions of other fit parameters.
    For details, see the updated documentation for
    'set_par_fun'.

  * Ability to compute multi-component plasma emission
    models which optionally include line emission only 
    or continuum emission only.  (Previous versions
    supported computing only the total of all line
    and continuum emission).  See 'model_spectrum'
    for details.

- John

-- 
John C. Houck  MIT Center for Space Research, Bldg NE80-6005
617-253-3849   77 Massachusetts Avenue, Cambridge, MA 02139-4307
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