Returns the difference of two polynomials.
JAX implementation of numpy.polysub().
a1 (ArrayLike) – Array of minuend polynomial coefficients.
a2 (ArrayLike) – Array of subtrahend polynomial coefficients.
An array containing the coefficients of the difference of two polynomials.
Examples
>>> x1 = jnp.array([2, 3]) >>> x2 = jnp.array([5, 4, 1]) >>> jnp.polysub(x1, x2) Array([-5, -2, 2], dtype=int32)
>>> x3 = jnp.array([[2, 3, 1]])
>>> x4 = jnp.array([[5, 7, 3],
... [8, 2, 6]])
>>> jnp.polysub(x3, x4)
Array([[-5, -7, -3],
[-6, 1, -5]], dtype=int32)
>>> x5 = jnp.array([1, 3, 5])
>>> x6 = jnp.array([[5, 7, 9],
... [8, 6, 4]])
>>> jnp.polysub(x5, x6)
Traceback (most recent call last):
...
ValueError: Cannot broadcast to shape with fewer dimensions: arr_shape=(2, 3) shape=(2,)
>>> x7 = jnp.array([2])
>>> jnp.polysub(x6, x7)
Array([[5, 7, 9],
[6, 4, 2]], dtype=int32)
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