More help with odeset()

[Rik]

Could someone run the following test under Matlab?

x = odeset ('MassConstant', true)

According to the documentation in Octave,

## @item MassConstant
## Specify whether the mass matrix is a constant matrix or depends on
## the state.

but this option doesn't appear in the Matlab documentation for odeset. 
It's probably unnecessary because when the Mass property is a matrix, it is
constant, if Mass is a function handle, it has the possibility of depending
on state. 

If it isn't necessary it can be deleted and the FIXME in the code for
odeset closed.  I tried 'grep -r MassConstant' in scripts/ode and the
property isn't used in any calculating solver.

--Rik