Numercial Integration

Subscribe to Numercial Integration 4 posts, 4 voices

 
posted 2 years ago
?path=sarar&height=32 Sara Rosenbaum 1 post 		I am taking the six week webinar series to learn how to build models with simulate. So I am new to the software. I have used Stella/ithink previously. Many of my models have variables that need to be caluclated using numerical integration. Is this something that can be done in Simulate. If so will be be covered during th webinar series?.

Thanks, Sara
 
posted 2 years ago
?path=mbean&height=32 Michael Bean Administrator 65 posts 		Hi Sara,

We weren't planning on covering numerical integration in detail during the six week course, but numerical integration is supported by Forio Simulate.

You can set the DT in you model by using the Model-wide property TimeStep. For example:
M TimeStep = 0.25

This is using Euler’s method for calculating the numerical integration.

Best, Michael
 
posted 2 years ago
?path=bbsim&height=32 Basic Busine... 173 posts 		Hello Michael,

Can methods other than Euler be declared?

Bill
 
posted 2 years ago
?path=wglass&height=32 Will Glass-H... Administrator 215 posts 		Hi Bill,

Unfortunately, models built with the Forio modeling language only supports Euler integration.   One option that works is to build a model in Vensim, set the algorithm to RK, then upload the Vensim model.  (which is simulate natively in Vensim).

WILL

Please log in to reply to topics.

Forums → Support →