term1 Definition1term2 Definition2term3 Definition3
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How to start to write a scrit direct from R prompt ?
fix(prog1)
What is the operator for inner product ?
inner_product <- a %*% b
How to transfor a vector in matrix ?
xxc <- matrix(xx, ncol = 1) # argument nrow for n rows.
How to transpose a matrix A ?
t(A)
How to multiple two matrices A and B ?
A %*% B # the matrice multiplication operator is '%*%'
Which function calculates the inverse of a matrix aa ?
solve(aa)
How to solve a system of multiple equations with aa(coef. matrix) and ff (right side)
solve(aa, ff)
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