Error caused by repeated code

[dugushiyu]

https://github.com/arduino-libraries/MadgwickAHRS/blob/7b6a63548cdb2895e7af4d7d805180eca78d0546/src/MadgwickAHRS.cpp#L237-L238

error................................

[izu-co]

It's a little late, but if you look at the referenced Wikipedia article, you can see that a second iteration is indeed possible.