Re: Math Question
In other words:
Take the following two sets of ordered pairs:
f: (1,1), (4,2), (9,3)
g: (1,1), (1,-1), (4,2), (4,-2), (9,3), (9,-3)
f is a function, g is not.
So, if you want to use the square root in circumstances where a function is required,it is useful to define it as f.
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The great tragedy of science...the slaying of a beautiful hypothesis by an ugly fact. (T. H. Huxley)
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