If you are using a Windows computer, you can open and run models that were saved on a Macintosh. The same is true on the Macintosh when opening a model saved on Windows.
You do not need to convert the models.
iThink and STELLA are available in both Windows and Macintosh versions. Windows Vista or later and Macintosh OS 10.7 or higher are required.
Yes, both Stella and iThink run natively on 64-bit Windows machines.
Drop a flow and start dragging it. When you want it to change direction at a 90-degree angle, hold down the shift key while you move the cursor in the direction
you want the flow to go. For more tips and tricks about using Stella, read our blog post.
Drop a connector into the first variable and start dragging it. When you want it to add a bend, hold down the shift key while you move the cursor in the direction
you want the connector to go.
Unfortunately, this is not possible within the table. However, you can select several variables on the diagram and set their precisions to the same setting in
the Scales and Ranges panel.
To delete a page on a Graph or Table Pad, click the page-turn arrows in the top right corner of the Graph or Table Pad until the page that you want to delete
is showing. Next, click on the red minus sign in the top left corner of the Graph or Table settings panel.
Yes, you can change the default color of entities for each model that you build that will apply to all models you build after making the setting.
The option is available in the “Default Settings…”, accessible from the Edit menu.
If you have Connectors into a Module that are not being used or there are inputs inside the Module that have not been assigned, the Module will not run
in a higher level of the model hierarchy.
It may be a missing picture, Excel spreadsheet, or some other imported file. When copying a model from one computer to another, you may need to copy more than
just the model file. If your model uses other files such as graphics, sounds, or spreadsheets you’ll need to package all of them with the model file. For more
details, read our Blog Post.
Yes, you can open and run models from a command line. You can also perform other operations using the command line. For more details, read our
Yes, Stella and iThink support matrix operations such as addition, subtraction, transposition, multiplication, and division. You can also perform matrix
multiplication with the PROD builtin function. For more details, read our Blog Post.
Yes, you can build causal loop diagrams using either name-only modules or name-only delay converters. Using modules, you can also link a CLD to a working stock and flow
model. To learn more and see an example, read our Blog Post.
Storytelling is a feature unique to Stella Designer and Architect that allows you to present and explain your model piece-by-piece. Even more powerful, however, is
the ability to show the behavior as the structure of the model unfurls. Through storytelling, you can clearly create and communicate the link between the structure
of the system and the dynamic behavior. For more details, read our Blog Post.
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isee systems inc. holds registered trademark rights over the following: iThink®, STELLA®, Stella®, isee systems® and claims the following trademarks; isee NetSim™, Stella Live™, Causal Lens™.
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