jax.lax.nextafter(x1, x2)[source]#

Returns the next representable value after x1 in the direction of x2.

Note that in some environments flush-denormal-to-zero semantics is used. This means that, around zero, this function returns strictly non-zero values which appear as zero in any operations. Consider this example:

>>> jnp.nextafter(0, 1)  # denormal numbers are representable
Array(1.e-45, dtype=float32, weak_type=True)
>>> jnp.nextafter(0, 1) * 1  # but are flushed to zero
Array(0., dtype=float32, weak_type=True)

For the smallest usable (i.e. normal) float, use tiny of jnp.finfo.

Return type