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Computing Matrix Algebra with R and Rcpp

Scalar Multiplication

Understand the concept of scalar multiplication on matrices and learn to implement it in R and Rcpp. Explore how to multiply each element of a matrix by a scalar using nested loops and verify results with RcppArmadillo and RcppEigen libraries.

We'll cover the following...

Scalar multiplication is defined over a matrix of any dimension.

𝑅=π‘˜βˆ—π΄π‘… = π‘˜βˆ—π΄

π‘Ÿπ‘–π‘—=π‘˜βˆ—π‘Žπ‘–π‘—π‘Ÿ_{𝑖𝑗} =π‘˜βˆ—π‘Ž_{𝑖𝑗} ...