R Under development (unstable) (2023-04-23 r84305 ucrt) -- "Unsuffered Consequences"
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> 
>  set.seed(42)
> 
>  library(rcdd)
If you want correct answers, use rational arithmetic.
See the Warnings sections in help pages for
    functions that do computational geometry.
> 
>  d <- 10
>  n <- 5
>  foo <- matrix(rnorm(d * n), d)
> 
>  bar <- qgram(foo)
> 
>  baz <- qmatmult(t(bar), bar)
>  all(baz[row(baz) != col(baz)] == "0")
[1] TRUE
> 
>  all(apply(qabs(bar), 2, qsum) == "1")
[1] TRUE
> 
> 
> proc.time()
   user  system elapsed 
   0.26    0.03    0.28