Displaying 3 results from an estimated 3 matches for "rkf".
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2004 Oct 04
3
Beginners problem
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rk4 <- function(x,y,f,h) {
n <- length(y)
hh <- h*0.5
k1 <- f(x,y)
k2 <- f(x,y+k1*hh)
k3 <- f(x,y+k2*hh)
k4 <- f(x,y+k3*h)
y <<- y + h/6.0*(k1 + 2.0*k2 + 2.0*k3 + k4))
}
rkf <- function(x,y) {
-y
}
rktest <- function(){
y <- 1.0
x <- 0.0
h <- 0.1
for(i in 1:10) {
rk4(x,y,rkf,h)
print(y)
}
}
rktest()
2010 Jan 29
2
sieve script
Hello,
after qmail migration need convert some .procmailrc scripts. Found
converter procmail -> sieve, but i'm not sure of quality of
conversion.
My script:
---------------
if header :contains "from" ["user at domain1.tld", "user2 at domain2.tld",
"user3 at domain3.tld"] {
redirect "foo1 at bar.tld";
redirect "foo2 at
2008 Jun 30
4
Rebuild of kernel 2.6.9-67.0.20.EL failure
Hello list.
I'm trying to rebuild the 2.6.9.67.0.20.EL kernel, but it fails even without
modifications.
How did I try it?
Created a (non-root) build environment (not a mock )
Installed the kernel.scr.rpm and did a
rpmbuild -ba --target=`uname -m` kernel-2.6.spec 2> prep-err.log | tee
prep-out.log
The build failed at the end:
Processing files: kernel-xenU-devel-2.6.9-67.0.20.EL
Checking