PetscRandomGetValue(), PetscRandomGetValueReal(), PetscRandomGetValueImaginary()
bsmith at mcs.anl.gov
Mon Oct 26 15:19:57 CDT 2009
There is a lack of symmetry in the meaning of
PetscRandomGetValueReal() and PetscRandomGetValueImaginary(). The real
returns a PetscReal with a random value in it. The imaginary returns a
complex number with zero real part and some imaginary part.
I have changed PetscRandomSetInterval() to allow the real or
imaginary part of the interval to be zero.
Thus one can get pure real complex numbers by setting the complex
part of low to high and get pure imaginary complex numbers by setting
the real part of low to high.
Then we can eliminate PetscRandomGetValueImaginary(). I dislike
it (since it is ugly, has no real equivalent version (for example to
get a random number that is zero in the imaginary part I need to call
PetscRandomGetValueReal() and then stick that real value into a
What do you think?
More information about the petsc-dev