Ventana software support forum

You need to use a level. Have you gone through any of the tutorials yet? I create level (population) , flow (population growth) , constant (population growth rate) for equation of population i have to use this (population(t)=population(t-1)+population growth But I don't know how to introduce t and ...

Hello .
How do I enter the following formula into the equation section?
pop(t)=pop(t-1)+popg
pop means population
popg means population growth
t is current year , t-1 means last year