BSA (m2) = SQRT( [Height(cm) x Weight(kg) ]/ 3600 )

[Ja Al]

i would like at write this formula in app inventer any one can help me on this

BSA (m²) = SQRT( [Height(cm) x Weight(kg) ]/ 3600 )

thanks

[Taifun]

important is to nest the blocks correctly, see an example here http://stackoverflow.com/a/26041125/1545993

Taifun

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Trying to push the limits of App Inventor! Snippets, Tutorials and Extensions from Pura Vida Apps by Taifun. 

[Abraham Getzler]

If you right-click-External-Inputs on the blocks, 

the nesting becomes branching.

I find that easier to read.

ABG

[Abraham Getzler]

The attached should get you started.

Actual use would require extra blocks to validate input values against reasonable upper and lower limits, and pop up a Notifier if anything is unreasonably large or small.

You could jazz the app up by adding sliders for the two input values.

ABG

[Ja Al]

thanks :)

[Ja Al]

thanks :)

[Ja Al]

very helpful and extremely user friendly two points which i was not able to sort if your could guid me it would be much appreciated i have attached herewith the screen capture of my problem thanks

[ScottFerguson]

You are trying to do a calculation with the values in the labels rather than the textboxes which is giving an error.