polyMatrix: pVsk – R documentation

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pVsk

The scalar product of two polynomial vectors

Description

If pMy is NULL, then the result is the sum of squares of the elements of pMx. Otherwise equals the scalar product ot the two given polynomial vectors.

Usage

pVsk(pMx, pMy=NULL)

Arguments

`pMx`	a `polyMatrix` class row or column vector
`pMy`	a `polyMatrix` class row or column vector

Details

The two vectors must have the same length.

Value

A polynomial class object, which is the sum of the elementwise product of the two vectors.

Examples

A <- polyMgen.d(2,2,rawData=ch2pn(c("-3","2+4*z","-z^2","1"),"z"))
A

pMcol(A,1) # ("-3" , "2 + 4*x")
pVsk(pMcol(A,1)) # "13 + 16*x + 16*x^2"

pMrow(A,2) # ("2 + 4*x" , "1")
pVsk(pMcol(A,1),pMrow(A,2)) # "-4 - 8*x"

# clean up
# rm(A)

polyMatrix

Infrastructure for Manipulation Polynomial Matrices

v0.3.1

MIT + file LICENSE

Authors

Tamas Prohle [aut], Peter Prohle [aut], Nikolai Ryzhkov [aut, cre], Ildiko Laszlo [aut] (<https://orcid.org/0000-0003-2324-8183>), Ulas Onat Alakent [ctb]

Initial release