How do you restrict domain of a function to an open interval?

Amarisa Chantanasiri shared this question 3 years ago

Answered

I am familiar with the command "Function[ <Function>, <Start x-Value>, <End x-Value> ]" for creating a function with domain restriction to an interval.

But this command does not work if I would like to restrict the domain to an open interval, e.g. x>0.

Could anyone suggest a solution?

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Best Answer

Michael Borcherds ● 3 years ago

f(x)=x^2, x>0

Comments (7)

ccambre ● 3 years ago

I think i'ts not implemented in GG, so you'll need something that looks like it like. While drawing you could do with something like Function[ <Function>, 0.01, 5000 ] and an exta open or a red point at (0, f(0) ).

chris

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Michael Borcherds ● 3 years ago ●

f(x)=x^2, x>0

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ccambre ● 3 years ago

Sometimes life is simple

chris

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Amarisa Chantanasiri ● 3 years ago

Thanks a lot!

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Anderson Danny ● 3 years ago

How can I graph an integer domain function?

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Zbynek ● 3 years ago

Define f(x)=x^2

Then you can use either of these:

(1...10,f(1...10))

Zip((n,f(n)),n,1...10)

Sequence((n,f(n)),n,1,10)

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Tang Dashi ● 3 years ago

desktop win10, 5.0345 ok

not in 5.0344

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