There are also more general stochastic differential equations where the coefficients "μ" and "σ" depend not only on the present value of the process "X""t", but also on previous values of the process and possibly on present or previous values of other processes too.
There are also more general stochastic differential equations where the coefficients "μ" and "σ" depend not only on the present value of the process "X""t", but also on previous values of the process and possibly on present or previous values of other processes too.