# cosine_similarity

> **Function** in `langchain_azure_cosmosdb`

📖 [View in docs](https://reference.langchain.com/python/langchain-azure-cosmosdb/_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-azure/blob/e62c2a55aaa0942fdac739b4066011953b80018e/libs/azure-cosmosdb/src/langchain_azure_cosmosdb/_utils.py#L106)