Hi,
I'm not a bright programmer , but I have to solve the fallowing equations:
##\frac{df}{dt} = \alpha f -\beta f + \theta g - (f+h)f##
##\frac{dg}{dt} = \psi f- \phi g##
##\frac{dh}{dt} = \xi f+ \mu h -\tau h + \epsilon w- (f+h)h##
##\frac{dw}{dt} = \nu h - \chi h##
Where ##f(t)## ...