strengthen the QR test and use the separated code
strengthen the QR test and use the separated code

took some printouts from Octave
to use as the inputs for a QR
validity check

yangf4/core,YetAnotherMinion/core,YetAnotherMinion/core,yangf4/core,yangf4/core,YetAnotherMinion/core,yangf4/core,YetAnotherMinion/core,YetAnotherMinion/core,yangf4/core