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I will explain how to write expressions of arithmetic operations in Wagby.

Wagby allows you to specify arithmetic expressions between items.functionYou can also use.The computational accuracy is equivalent to Java's capability.

- (1) Basic writing style
- You can express it in the expression by putting the item ID in the place holder.
- (2) Model reference
- In the model reference item, there are "ID part" and "content part". In the automatic calculation formula, you can specify which part to use.
- (3) Calculation expression example
- We introduce examples of various automatic calculation formulas including calculation of age and required time.
- (4) Prepare a calculation formula and editable items
- Items for which formulas are set are read-only. By combining this with ordinary input items, we will explain how to prepare items that can be automatically calculated and edited.

Using scripts, you can write transaction processing. "Business logic> Cross-model calculation (transaction)Please read.