Sum elements add values together. Although this can also be done using an Expression, a Sum element provides a somewhat more convenient and user-friendly way to create a sum if a large number of items are involved. More importantly, it provides a powerful visual indication of what operation it is carrying out, and this adds to the transparency of your model.
To Open the Model File:
- Start GoldSim
- Click on the File and select Open Example...
- Browse to General Examples and select the file called Sum.gsm