{lo val1 val2 duration(s)}The lo is for logarithm. The values given after lo will define the departure and arrival points of an exponential line. Last element in the list is the duration in number of events or seconds (s)
Values can be:
{lo 4.567 10 10s} {lo 4 0 30}
{lo [blue] [black] 30s}where blue and black have been defined as irate variables in the Cecilia interface.
{lo {ran f .5 3.3} 4 30s}At computation time, the departure value of the line will be randomly selected between .5 and 3.3. The arrival point will always be 4.