We then compare them and choose the larger absolute valued one as the R-peak. To reduce cost or complexity, this feature may only used during setup to account for polarity switching, and then once the orientation of the R-wave is known, the first or second peak may always be chosen as...
That is, a billinear, scalar valued function of two vectors, given by (2) when M=idM=id. When thought of as a tensor in this way, the dot product function is better known as the Kronecker delta. The tensors of rank rr (i.e. multilinear functions of rr vectors) for an NN-dimen...