jax.numpy.arcsin — JAX documentation (original) (raw)

jax.numpy.arcsin#

jax.numpy.arcsin(x, /)[source]#

Compute element-wise inverse of trigonometric sine of input.

JAX implementation of numpy.arcsin.

Parameters:

x (ArrayLike) – input array or scalar.

Returns:

An array containing the inverse trigonometric sine of each element of xin radians in the range [-pi/2, pi/2], promoting to inexact dtype.

Return type:

Array

Note

• jnp.arcsin returns nan when x is real-valued and not in the closed interval [-1, 1].
• jnp.arcsin follows the branch cut convention of numpy.arcsin for complex inputs.

See also

• jax.numpy.sin(): Computes a trigonometric sine of each element of input.
• jax.numpy.arccos() and jax.numpy.acos(): Computes the inverse of trigonometric cosine of each element of input.
• jax.numpy.arctan() and jax.numpy.atan(): Computes the inverse of trigonometric tangent of each element of input.

Examples

x = jnp.array([-2, -1, -0.5, 0, 0.5, 1, 2]) with jnp.printoptions(precision=3, suppress=True): ... jnp.arcsin(x) Array([ nan, -1.571, -0.524, 0. , 0.524, 1.571, nan], dtype=float32)

For complex-valued inputs:

with jnp.printoptions(precision=3, suppress=True): ... jnp.arcsin(3+4j) Array(0.634+2.306j, dtype=complex64, weak_type=True)