This R package helps do modular arithmetic operations. In particular, it can give arithmetic (multiplication) tables in modular space.
It is a demo package meant to show some strategies for creating packages and illustrates some basic S3 classes in R. It is not meant for production use. A better package for doing modular arithmetic in R would be the gmp package (or base R!).
remotes::install_github("pegeler/modulR")This is a basic example which shows you how to solve a common problem:
library(modulR)
# Initialize
z11 <- m_arithmetic(11)
z11
#> A modulR object, modulus 11
# What is 13 in Z_11?
z11$identity(13)
#> [1] 2
# Multiplication table in Z_11
z11$tables$mul
#> * | 1 2 3 4 5 6 7 8 9 10
#> ----+------------------------------
#> 1 | 1 2 3 4 5 6 7 8 9 10
#> 2 | 2 4 6 8 10 1 3 5 7 9
#> 3 | 3 6 9 1 4 7 10 2 5 8
#> 4 | 4 8 1 5 9 2 6 10 3 7
#> 5 | 5 10 4 9 3 8 2 7 1 6
#> 6 | 6 1 7 2 8 3 9 4 10 5
#> 7 | 7 3 10 6 2 9 5 1 8 4
#> 8 | 8 5 2 10 7 4 1 9 6 3
#> 9 | 9 7 5 3 1 10 8 6 4 2
#> 10 | 10 9 8 7 6 5 4 3 2 1
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