Python C extension to compute the permanent.
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README.md 510B

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  1. # permanent
  2. Implements Ryser's algorithm for the [permanent](https://en.wikipedia.org/wiki/Permanent).
  3. Install:
  4. ```bash
  5. $ pip install permanent
  6. ```
  7. Use:
  8. ```python
  9. >>> from numpy import *
  10. >>> from permanent import permanent
  11. >>> permanent(eye(15))
  12. (1-0j)
  13. ```
  14. Please note that for now we assume that the input array's `dtype` is `complex`. So for example:
  15. ```python
  16. >>> permanent(array([[0,1],[1,1]]), dtype=complex)
  17. (1+0j)
  18. ```
  19. whereas ```permanent(array([[0,1],[1,1]]))``` will not produce the expected result.