Computing Matrix Algebra with R and Rcpp/

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Multiplication Operation on Matrices

Multiplication Operation on Matrices

Learn how to multiply matrices using R, Rcpp, Armadillo, and Eigen.

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Matrix multiplication is defined element by element as:

𝐢=π΄βˆ—π΅πΆ = π΄βˆ—π΅

cij=βˆ‘k=1pπ‘Žπ‘–π‘˜π‘π‘˜π‘—c_{ij} = \displaystyle\sum_{k=1}^pπ‘Ž_{π‘–π‘˜}𝑏_{π‘˜π‘—} ...