this post was submitted on 02 Jul 2024
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chapotraphouse

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This little guy craves the light of knowledge and wants to know why 0.999... = 1. He wants rigour, but he does accept proofs starting with any sort of premise.

Enlighten him.

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[โ€“] [email protected] 5 points 3 months ago (1 children)

The symbol 'i' is usually reserved for the imaginary unit.

[โ€“] [email protected] 2 points 3 months ago

I've seen it used very frequently as a name for a variable, the imaginary unit i usually has a different typeface to distinguish the two is what Im accustomed to.