<jupyter_start><jupyter_text>nbdev_test> Prototype development with nbdev.  Install `pip install nbdev_test`  How to use Extra math functions can be called like normal functions:<jupyter_code>a = 2
double(a)
a = 2
triple(a)<jupyter_output><empty_output>
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{'chain_length': '1', 'dir': 'jupyter-structured-clean-dedup', 'id': '466116', 'license': 'Apache-2.0', 'n_tokens_mistral': 95, 'n_tokens_neox': 90, 'n_words': 26, 'path': 'index.ipynb', 'repo_name': 'gstaff/nbdev_test', 'size': '253'}