Chat with our AI personalities
It's a phrase used for stuff that's less than a centimeter long
centi, deci, and milli.as in centimeter, decimeter, and millimeteransw2. Strictly, they are not prefixes, they are the multiples and sub multiples as are approved by the International Bureau of Weights and Measures.
sub set is set
Sub means smaller or under.
4 9 sub is 7 squared