Levenberg-Marquardt Algorithm

[ian_ab]

@bar

I think that we might be getting the answer so much faster than ever before that it’s throwing something off in the communication

I noticed some people had this problem in V1,20 so I’m not sure that’s it.
This from Moving onto 1.20

@Sylvain_Dorais

[MSG:ERR: Calibration data not acknowledged by computer, resending]