[petsc-users] Precision of MatView

[Sanjay Govindjee via petsc-users]

I am using the following bit of code to debug a matrix.  What is the 
expected precision of the numbers that I will find in my ASCII file?
As far as I can tell it is not the full double precision that I was 
expecting.

            call PetscViewerASCIIOpen(PETSC_COMM_WORLD, 
tangview,K_view, ierr)
            call PetscViewerSetFormat(K_view, 
PETSC_VIEWER_ASCII_MATLAB, ierr)
            call MatView                     (Kmat, K_view, ierr)
-sanjay