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cran-task-views / NumericalMathematics

CRAN Task View: Numerical Mathematics
https://CRAN.R-project.org/view=NumericalMathematics
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Packages suggested by CTVsuggest #9

Open hwborchers opened 1 year ago

hwborchers commented 1 year ago

I tried out the 'CTVsuggest' package, as requested by Achim Zeileis. For the NumericalNumerics task view, it suggested the following packages:

CTVsuggest(taskview = "NumericalMathematics", n = 20)

jordan          0.9995356        pbdSLAP         0.9757127
RationalMatrix  0.9987952        vecsets         0.9717508
EigenR          0.9987411        FunWithNumbers  0.9669418
weyl            0.9972708        BLPestimatoR    0.9593805
gmpoly          0.9933795        maotai          0.9571226
Rfractran       0.9926443        mvmesh          0.9518288
qspray          0.9915961        spray           0.9497771
go2bigq         0.9838838        inflection      0.9467829
contFracR       0.9811039        Ryacas0         0.9463418
SparseChol      0.9780122        ecdfHT          0.9338194

I don't want to blow up the task view, but I think we have to check these packages. For instance, Ryacas and ecdfHT are not right in this context (Ryacas replaces Ryacas0) , but spray and jordan authored by Robin and will be appropriate for inclusion.

Can each of us go through this list and propose those packages that he thinks should be added?

sgsokol commented 1 year ago

I have looked at RatioanalMatrix which is somewhere in the midway between sections "Numerical Linear Algebra" and "Multi-Precision Arithmetic and Symbolic Mathematics" as the calculations are exact in the form of numerical rational expressions. Its description is very short and could be cited ditto in our TV:

Provides functions to deal with matrix algebra for matrices
with rational entries: determinant, rank, image and kernel, inverse,
Cholesky decomposition. All computations are exact.