#math - Mon 5 Mar 2007 between 00:05 and 01:14

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josesitoanyone know where to find statistical algorithms for common distributions?? (in basic)
(statistical distributions)
eigmaany ideas for an algorithm that distributes n items randomly among m bins, up to a maximum of k items in each bin?
TRWBWeigma: well you could just re-try if the bin is fulll
eigmaI'm sorry?
TRWBWeigma: start throwing them in bins. if you are about to throw one in a bin with k items, try another
eigmahmm.. okay
TRWBWeigma: if you want, you can get fancier, but that will work at least
eigmayeah..
zbrownWould this be a suitable recursive function for the set of odd positive integers? "a_(n+1) = a_n + 2 where a_1 = 1" ?
Jafetzbrown: Uh, yeah.
zbrownJafet: thanks.
geckosen1torhow do I project a vector onto a plane?
TRWBWgeckosen1tor: two ways, you can take out the part normal to the plane, or extract the part in the plane
geckosen1torok, so say I have a normal vector for the plane
TRWBWgeckosen1tor: well do you know how to project a vector along another vector?
geckosen1torI forgot the formula
but I have done that
it's a dot product times the normal vector?
TRWBWgeckosen1tor: pretty much
geckosen1tor: does your plane go through the origin or is it floating somewhere in space?
geckosen1torfloating
actually I have 2 vectors and a point
that defines the plane
then I have a third vector
TRWBWgeckosen1tor: the normal i guess?
geckosen1torer no
i get the normal from the cross of the first 2
2 vectors and a point define the plane
TRWBWgeckosen1tor: using your language, i'm unclear on whether the 3rd vector is a vector or a point
geckosen1torthen a third vector I want to project on the plane
TRWBWgeckosen1tor: and yes, you can use the cross product
geckosen1tor: you sure it's a vector? not a point? it makes a difference. vectors are differences of points
geckosen1torI understand how to do it by subtracting out the part to the normal
ok, in total I have 3 vectors and 1 point
the first two vectors and the point define a plane
TRWBWgeckosen1tor: so the 3rd vector starts from where?
geckosen1torthe point
all 3 start from the point
TRWBWgeckosen1tor: okay, then you can ignore the point, it won't be relevant here.

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