Mathematic notation (doubtless a stupid question)
Hello,
When writing, for example, "metres per second per second" for
acceleration, it is noted as ms^-2 (where the caret symbolises
the -2 is in superscript).
I understand that, and why, "per second per second" is "seconds
squared", but in the notation, why is it superscript minus 2? Why
not just superscript 2?
If I was ever taught this in maths lessons, the info is no longer
in my head.
Thanks in advance for any help,
David Paste.
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