# cosine_similarity

> **Function** in `langchain_qdrant`

📖 [View in docs](https://reference.langchain.com/python/langchain-qdrant/_utils/cosine_similarity)

Row-wise cosine similarity between two equal-width matrices.

## Signature

```python
cosine_similarity(
    X: Matrix,
    Y: Matrix,
) -> np.ndarray
```

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/079eb808f8f4c08a44481c770062584ce10323b3/libs/partners/qdrant/langchain_qdrant/_utils.py#L42)