vk(A) = “condition
number of A”
vIf A=USV’ is the
svd, then k(A) = smax/smin .
vAlternatively,
k(A) = Öl max (A’A)/l min (A’A)
vOne
number that measures digits lost in finite precision and general matrix
“badness”
vSmall=good
vLarge=bad
vThe
condition of a random matrix???
