Base 10 hyperlog transform.
- x : num | num iterable
- values to be transformed.
- b : num
- Parameter controling the location of the shift
from linear to log transformation.
- r : num (default = 10**4)
- maximal transformed value.
- d : num (default = log10(2**18))
- log10 of maximal possible measured value.
hlog_inv(r) = 10**d
Array of transformed values.
