Displaying 3 results from an estimated 3 matches for "electrostatics".
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electrostatic
2008 Apr 26
6
quasi-random sequences
Dear list useRs,
I have to generate a random set of coordinates (x,y) in [-1 ; 1]^2
for say, N points. At each of these points is drawn a circle (later
on, an ellipse) of random size, as in:
> N <- 100
>
> positions <- matrix(rnorm(2 * N, mean = 0 , sd= 0.5), nrow=N)
> sizes<-rnorm(N, mean = 0 , sd= 1)
> plot(positions,type="p",cex=sizes)
My problem is to
2012 Jun 20
0
compute similarity distance
...#reading the matrix 'a'
y<-read.table("b") #reading the matrix 'b'
#----------------------------------
# based on Chris et al (2011): The effect of electrostatics on Factor H and related pathologies
c1<-x-y # phiA(i,j,k)-phiB(i,j,k)
c<-sqrt(c1$V1^2+c1$V2^2+c1$V3^2) # |phiA(i,j,k)-phiB(i,j,k)|
a<-sqrt(x$V1^2+x$V2^2+x$V3^2) #|phiA(i,j,k)|
b<-sqrt(y$V1^2+y$V2^2+y$V3^2)...
2011 Jun 14
6
OT: high static in server room
Hi guys,
Sorry for the OT.
For the last couple of weeks I notice that the static in my server
room is worrisomely noticeable.
I cannot see what may be causing it....
Care to share some of your experience what may be the cause and the remedy?
Thank you.