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- Wed May 02, 2018 2:11 pm
- Forum: System Dynamics Discussion
- Topic: Sum over time
- Replies: 1
- Views: 4026
Sum over time
Hi dear Vensim users, I would like to calculate the sum over time. For example: I have a variable that states the amount of money spent on a project per time unit (year), sometimes more than initial, sometimes less (depending on the model). Now i would like to add each investments for each time to g...