# How to rearrenge function with inputs given?

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Berke Kadir Türker on 6 Jul 2021
Answered: the cyclist on 6 Jul 2021
f=m.a (where we know m=5 and a=10)
let's say we have that function
but we also could've need
a=f/m (where we know F=10 m=2)
or
m=f/a(where we know F=10 a=4)
in another problem.
This means more and more functions for every other variable and also means that much error handling.
I don't know what's the term i need can you help?
Berke Kadir Türker on 6 Jul 2021
@dpb thank you :)

the cyclist on 6 Jul 2021
Option 1
You could do something that is GUI-driven, where the user enters values into textboxes that you have labeled as
• acceleration
• mass
• energy
• (etc)
but allow them to leave one box blank. Then you can infer from which box is empty, which formula to use.
Option 2
You could require the user to enter the values as strings, with the units included, e.g.
'65 Joules'
and then infer the quantity from the units, and calculate accordingly.

R2021a

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