R Under development (unstable) (2023-11-08 r85496 ucrt) -- "Unsuffered Consequences" Copyright (C) 2023 The R Foundation for Statistical Computing Platform: x86_64-w64-mingw32/x64 R is free software and comes with ABSOLUTELY NO WARRANTY. You are welcome to redistribute it under certain conditions. Type 'license()' or 'licence()' for distribution details. R is a collaborative project with many contributors. Type 'contributors()' for more information and 'citation()' on how to cite R or R packages in publications. Type 'demo()' for some demos, 'help()' for on-line help, or 'help.start()' for an HTML browser interface to help. Type 'q()' to quit R. > ## > ## c r o s s n . R tests > ## > > crossn <- pracma::crossn > > x <- c(1.0, 0.0, 0.0) > y <- c(1.0, 0.5, 0.0) > z <- c(0.0, 0.0, 1.0) > identical(pracma::dot(x, crossn(rbind(y, z))), + det(rbind(x, y, z))) [1] TRUE > > proc.time() user system elapsed 0.15 0.00 0.14