diff options
Diffstat (limited to 'tensorflow/contrib/integrate/python/ops/odes.py')
| -rw-r--r-- | tensorflow/contrib/integrate/python/ops/odes.py | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tensorflow/contrib/integrate/python/ops/odes.py b/tensorflow/contrib/integrate/python/ops/odes.py index 61f78febfc..7b7ac4f347 100644 --- a/tensorflow/contrib/integrate/python/ops/odes.py +++ b/tensorflow/contrib/integrate/python/ops/odes.py @@ -73,7 +73,7 @@ def _scaled_dot_product(scale, xs, ys, name=None): # _possibly_nonzero lets us avoid wasted computation. return math_ops.add_n( [(scale * x) * y for x, y in zip(xs, ys) - if _possibly_nonzero(x) or _possibly_nonzero(y)], + if _possibly_nonzero(x) and _possibly_nonzero(y)], name=scope) @@ -122,7 +122,7 @@ def _runge_kutta_step(func, yi = y0 + _scaled_dot_product(dt_cast, beta_i, k) k.append(func(yi, ti)) - if not (tableau.c_sol[-1] == 0 and tableau.c_sol == tableau.beta[-1]): + if not (tableau.c_sol[-1] == 0 and tableau.c_sol[:-1] == tableau.beta[-1]): # This property (true for Dormand-Prince) lets us save a few FLOPs. yi = y0 + _scaled_dot_product(dt_cast, tableau.c_sol, k) |