Elementwise sum of numeric or character arrays.

x %sum% y

Arguments

x

numeric or character array.

y

numeric or character array.

Value

array.

References

Guidotti, E. (2020). "calculus: High dimensional numerical and symbolic calculus in R". https://arxiv.org/abs/2101.00086

See also

Other basic arithmetic: %diff%(), %div%(), %dot%(), %inner%(), %kronecker%(), %outer%(), %prod%()

Examples

### vector x <- c("a+1","b+2") x %sum% x
#> [1] "a+1 + a+1" "b+2 + b+2"
### matrix x <- matrix(letters[1:4], ncol = 2) x %sum% x
#> [,1] [,2] #> [1,] "a + a" "c + c" #> [2,] "b + b" "d + d"
### array x <- array(letters[1:12], dim = c(2,2,3)) y <- array(1:12, dim = c(2,2,3)) x %sum% y
#> , , 1 #> #> [,1] [,2] #> [1,] "a + 1" "c + 3" #> [2,] "b + 2" "d + 4" #> #> , , 2 #> #> [,1] [,2] #> [1,] "e + 5" "g + 7" #> [2,] "f + 6" "h + 8" #> #> , , 3 #> #> [,1] [,2] #> [1,] "i + 9" "k + 11" #> [2,] "j + 10" "l + 12" #>