How to create a DC with 2 entries linked by a formula

[Serge.N]

I wish to create a DC defined with 2 values that I want editable and that are linked by a formula.

For example a right triangle. I wish to have two entries: one angle or the opposite side length. The DC would compute the value that wouldn't have been changed by the user and update the drawing as well as the two values so they are again linked by the formula.

Any suggestion?

Thanks
Serge