@MSerg,
7.924394824422452
--------------
now step by step:
got peaks: [-10, -3, -8.91]
peak is -10 , squared 100 , sum now is 100
peak is -3 , squared 9 , sum now is 109
peak is -8.91 , squared 79.38810000000001 , sum now is 188.3881
sum / number of peaks (3) 62.796033333333334
returning square...