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Xprod
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xprod <- function(x,y) { m <- rbind (rep (NA, 3),x,y) xp <- vector(length=3) for (i in 1:3) xp[i] <- -(-1)^i * det (m[2:3,-i]) return (xp) } x=c(1,2,-1) y=c(0,-1,1) v=xprod(x,y) print(v)
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Absolute running time: 0.44 sec, cpu time: 0.63 sec, memory peak: 30 Mb, absolute service time: 0,45 sec
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