>>> from logaritme import salog

>>> import math
>>> round(math.log(2), 4)
0.6931

>>> round(salog(3), 4)
0.8333
>>> round(salog(10), 4)
0.6456
>>> round(salog(100), 4)
0.6882
>>> round(salog(1000), 4)
0.6926