6
votes
1answer
168 views

“Commutivity” or “commutativity”

I see commutivity used in contexts where the meaning appears to be the same as commutativity. Here are an example from physics and another example. Is commutivity incorrect? Does it differ from ...
8
votes
4answers
2k views

How can I form a word like “quadruple” for any number I want?

I'm not sure what these are called, but how can I form a word like "quadruple" for any number I want? Like 5× as much is quintuple, what is 31× as much or 147× as much? I want to know how they are ...