Displaying 2 results from an estimated 2 matches for "matrix__________________".
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matrix________________
2002 Oct 09
0
R 1.6.0 benchmark with and without optimized ATLAS
...lues______________________ (sec):
1.53666666666667
Eigenvalues of a 220x220 random matrix______________ (sec):
0.466666666666669
Determinant of a 750x750 random matrix______________ (sec): 1.65
Cholesky decomposition of a 1000x1000 matrix________ (sec):
1.30333333333334
Inverse of a 500x500 random matrix__________________ (sec):
1.76000000000000
--------------------------------------------
Trimmed geom. mean (2 extremes eliminated):
1.48949725041955
III. Programmation
------------------
225,000 Fibonacci numbers calculation (vector calc)_ (sec): 0.25
Creation of a 1500x1...
2001 Feb 16
1
Sub_scribe and a question
...1:runs) {
a <- rnorm(500*500); dim(a) <- c(500, 500)
timing <- system.time({
b <- qr.solve(a)
# Rem: a little faster than b <- solve(a)
})[3]
cumulate <- cumulate + timing
}
timing <- cumulate/runs
times[5, 2] <- timing
cat(c("Inverse of a 500x500 random matrix__________________ (sec): ", =
timing, "\n"))
remove("a", "b")
flush.console()
times[ , 2] <- sort(times[ , 2])
cat(" =
--------------------------------------------\n")
cat(c(" Trimmed mean (2 extremes eliminated): ",...