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(x-1)/(x+1) #360

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@carlosmintfan

Hi @mauriciopoppe, thank you for this library! Would like to share this amazing, but probably buggy representation of (x-1)/(x-1):

Representation of (x-1)/(x-1)

What's that?! Very funny. Beautiful, super interesting, this design! But I think it comes out of a bug? I think the solution line should always be y = 1, not getting bold between 0.3 (or so) and 1 already and turning into two lines that then flow at 0.99 into infinity, then come back and get one line on the right again? Wow, this is awesome. But if we want to represent the function correctly, the solution should always be y = 1, only at exactly x = 1 there is no solution, but on plotters like graph.equation.io that's invisible.

Is this some fascinating intrinsic of your interval-arithmetic math?

Somewhat the opposite is happening when plotting tan(x). Then graph.equation.io prints vertical lines where the tangent is undefined, your plotter is “cleaner” and doesn't! How is that?

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    interval arithmeticIssues related with interval arithmetic plots.

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