  This paper presents an adaptation of recently developed algorithms for
quadratic forms over number fields in arXiv:1304.0708 to global function fields
of odd characteristics. First, we present algorithm for checking if a given
non-degenerate quadratic form is isotropic or hyperbolic. Next we devise a
method for computing the dimension of the anisotropic part of a quadratic form.
Finally we present algorithms computing two field invariants: the level and the
Pythagoras number.
