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Support material for

*
Small circulant complex Hadamard matrices of Butson type
*

by GAURUSH HIRANANDANI AND JEAN-MARC SCHLENKER

The main paper is
here.
On this page you will find:
a python program
used to find complete lists of equivalence classes of complex Hadamard matrices
of rank *n* based on a *l*-th root of unity, for *n* and *l*
small,
a pdf file containing the lists of circulant complex
Hadamard matrices appearing in Table 1 of the paper.
a pdf file containing a description of the algorithm
used in the python program above, and of the all the functions used in this program.