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May 06, 2024, 01:45:11 pm
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Author Topic: To clarify  (Read 352 times)  Share 

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happycat

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To clarify
« on: February 13, 2011, 09:24:16 pm »
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When you get a function that's defined by say f: R (arrow) R, F(x)=x^2 -2 what does the 'f: R (arrow) R" bit mean again? Sorry if this sounds like a dumb question.
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kamil9876

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Re: To clarify
« Reply #1 on: February 13, 2011, 09:35:19 pm »
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saying that f is a function from R to R (explicitly, for every x in R there exists a (unique) value for f(x) that is in R)
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Voltaire: "There is an astonishing imagination even in the science of mathematics ... We repeat, there is far more imagination in the head of Archimedes than in that of Homer."

happycat

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Re: To clarify
« Reply #2 on: February 13, 2011, 09:45:12 pm »
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Hey, thanx for that kamil
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