pub fn decode(coded: &[usize], m: usize) -> Result<Vec<usize>>Expand description
Differential decoding: the n differences $a_{k} = (c_{k} - c_{k-1}) \bmod M$ of
n + 1 phase indices.
§Errors
Error::Config unless m is a power of two ≥ 2 and every index is below m;
Error::Shape without a reference symbol (an empty input).