# cosine_similarity

> **Function** in `langchain_milvus`

📖 [View in docs](https://reference.langchain.com/python/langchain-milvus/vectorstores/milvus/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-milvus/blob/2a21d38989d3dc00d000a1f5501f2cb134d24f36/libs/milvus/langchain_milvus/vectorstores/milvus.py#L132)