# L n'(0)=-n

From specialfunctionswiki

## Theorem

The following formula holds: $$L_n'(0)=-n,$$ where $L_n$ denotes Laguerre L.

## Proof

## References

- 1968: W.W. Bell:
*Special Functions for Scientists and Engineers*... (previous) ... (next): Theorem 6.3 (ii)