# tree_d_3d.kernels.log_quadtree_moments.log_quadtree_moments_numpy

*module*

The NumPy version of the ``log_quadtree_moments`` kernel, for machines without Pyccel.

Vectorized over the particles of each node; the same arguments and results as ``log_quadtree_moments_pyccel.py``.

[View source](https://github.com/max-models/tree-d-3d/blob/devel/src/tree_d_3d/kernels/log_quadtree_moments/log_quadtree_moments_numpy.py#L1-L1)

## tree_d_3d.kernels.log_quadtree_moments.log_quadtree_moments_numpy.log_quadtree_moments

*function*

```python
def log_quadtree_moments(pos: np.ndarray, charge: np.ndarray, perm: np.ndarray, node_count: int, node_center: np.ndarray, node_start: np.ndarray, node_end: np.ndarray, node_qabs: np.ndarray, moment_re: np.ndarray, moment_im: np.ndarray) -> None
```

Complex multipole moments a_0 ... a_p of every node.

[View source](https://github.com/max-models/tree-d-3d/blob/devel/src/tree_d_3d/kernels/log_quadtree_moments/log_quadtree_moments_numpy.py#L11-L32)