Science Memes

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near zero (mander.xyz)

submitted 5 months ago by [email protected] to c/[email protected]

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[–] [email protected] 13 points 5 months ago (1 children)

When taking about limits, you can approach 0 from the positive or negative direction, which can give very different results. For example, lim cotx, x->0+ = ∞ while lim cotx, x->0- = -∞

[–] [email protected] 16 points 5 months ago (2 children)

Speaking as a mathematician, it's not really accurate to call that -0.

[–] [email protected] 1 points 5 months ago (1 children)

You also can't call something infinity. People call stuff names. It is just important that they define their terms well enough.

[–] [email protected] 1 points 5 months ago

You also can't call something infinity

Why do you think that?

[–] [email protected] 5 points 5 months ago

Yes, but it is infinitesimally close.