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Five data matrices with precomputed results from sumofsquares(n, 10, zerosum=TRUE, maxt=Inf) for n=100, n=200, n=400,n=800, and n=1000.
sumofsquares(n, 10, zerosum=TRUE, maxt=Inf)
n=100
n=200
n=400
n=800
n=1000
data(sos100) data(sos200) data(sos400) data(sos800) data(sos1000)sos200sos400sos800sos1000
sos200
sos400
sos800
sos1000
For each line of a matrix it holds \(\sum_{i=1}^k x_i^2=n\) and \(\sum_{i=1}^k x_i=0\). It contains all integer solutions up to k<=10. NA means that this entry is not used.
k<=10
NA
data(sos100) head(sos100) rowSums(sos100^2, na.rm=TRUE) rowSums(sos100, na.rm=TRUE)
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