import numpy as np from pysr import pysr, sympy2jax from jax import numpy as jnp from jax import random from jax import grad import sympy print("Test JAX 1 - test export") x, y, z = sympy.symbols('x y z') cosx = 1.0 * sympy.cos(x) + y key = random.PRNGKey(0) X = random.normal(key, (1000, 2)) true = 1.0 * jnp.cos(X[:, 0]) + X[:, 1] f, params = sympy2jax(cosx, [x, y, z]) assert jnp.all(jnp.isclose(f(X, params), true)).item()