μ i = lim H→0 μ a MathType@MTEF@5@5@+=feaagCart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHXgaruavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGeaGqipG0dh9qqWrVepG0dbbL8F4rqqrVepeea0xe9LqFf0xc9q8qqaqFn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpeWZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiabeY7aTnaaBaaaleaacaqGPbaabeaakiabg2da9maaxababaGaciiBaiaacMgacaGGTbaaleaacaWGibGaeyOKH4QaaGimaaqabaGccqaH8oqBdaWgaaWcbaGaaeyyaaqabaaaaa@4279@
[SOURCE: 2017-08-28: Added missing . LMO]