Source code for cr.sparse._src.opt.smooth.constant

# Copyright 2021 CR-Suite Development Team
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from jax import jit

import jax.numpy as jnp
import cr.nimble as cnb

from .smooth import build2

[docs]def smooth_constant(c=0.): """A constant value function """ c = jnp.asarray(c) c = cnb.promote_arg_dtypes(c) @jit def func(x): return c @jit def gradient(x): x = jnp.asarray(x) x = cnb.promote_arg_dtypes(x) return 0 * x return build2(func, gradient)