On 16-Feb-04 Peter Dalgaard wrote: > (Ted Harding) <[EMAIL PROTECTED]> writes: > >> Sorry! Missed a trick here: >> >> At <- t(A) >> Bt <- t(B) >> E <- B%*%A >> Et <- t(E) >> A%*%solve(Et%*%E + C)%*%Et%*%D >> >> (saves 2 multiplications at the relatively cheap cost of 1 transpose) > > Well, you might consider getting rid of the first two transposes since > you're not actually using them for anything....
Touch� ... ! Ted. -------------------------------------------------------------------- E-Mail: (Ted Harding) <[EMAIL PROTECTED]> Fax-to-email: +44 (0)870 167 1972 Date: 16-Feb-04 Time: 23:41:57 ------------------------------ XFMail ------------------------------ ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
