function \(f_{Z_t}(\boldsymbol{l},\boldsymbol{o})\) as defined in (2)
l (tuple) – vector \(\boldsymbol{l}\), should be a tuple
o (tuple) – vector \(\boldsymbol{o}\), should be a tuple
k (float) – parameter \(k\)
s (tuple) – jump time points
J (tuple) – jump sizes
function value
float