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ETC - Example for Tailoring, Placeholders and Calculations

Hidden Equations to Compute BMI

This computes your body mass index (BMI) and tells you your weight status.
It demonstrates the use of hidden Equation-type questions, whose values are stored in the database even though hidden on the screen.

* How much do you weigh?

Only numbers may be entered in this field.
Your answer must be at least 0.1

* Which units are you using for weight?

* How tall are you?

Only numbers may be entered in this field.
Your answer must be at least 0.1

* Which units are you using for height?