# jax.lax.nextafter¶

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
DeviceArray(1.e-45, dtype=float32)
>>> jnp.nextafter(0, 1) * 1  # but are flushed to zero
DeviceArray(0., dtype=float32)


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

Parameters
Return type

Any