Silicon example is back
Trying to update examples without having zombie files pop back in
Matrix updated
Doc updated
Removed external library, unused here
More on the default value of xk0_in
format change
bug fix, value was divided by not initialized variable (defaulting to 1)
xk0_in and grid_type in now default to the same value as xk0 and grid_type
Raise error when argument is expected but not present