This is a moderated community.
The goal is to encourage people to approach mathematics in a fashion that makes it accessible. In order to do this, we're going to need a few basic rules.
- Try to be on topic.
- Be civil.
- No drama.
Pretty simple, huh? Yeah... I reduced them to the lowest common denominator. If you have any questions, feel free to ask.
Off-topic is tolerated to some extent. Submissions should all be about mathematics, or clearly relate to mathematics. However, once you get into the comments section, it's a much looser standard. Discourse is encouraged, so long as civility is maintained. Good conversations tend to meander around topics and that's perfectly acceptable.
If you do vote, concentrate on promoting content and not downvoting content. Encourage and comment, if you see something that could use improvement. Downvotes don't convey very much information and aren't really helpful. If you must, you must... But try to assume the person making the post was just communicating poorly. Try to assume the best possible interpretation of their post.
Some terms:
- WDT Weekly Discussion Thread
Greek Alphabet:
Α α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η, Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ, Σ σ/ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, Ω ω
Hebrew Alphabet:
א ב ג ד ה ו ז ח ט י כ/ך ל מ/ם נ/ן ס ע פ/ף צ/ץ ק ר ש ת
Other common symbols:
¬ → ⇒ ⇔ ∀ ∂ ∃ ∅ ∇ ∈ ∉ √ ∞ ∧ ∨ ∩ ∪ ⊕ ∫ ≈ ≠ ≡ ≤ ≥ ⊆ ⊂ ⊃ ⊄ ° ± · × ⟌ ÷ ⌊ ⌋ ⌈ ⌉ ➀ ℤ ℕ ℙ ℚ ℝ ℂ ℍ ℭ
If you're interested in academia, you can feel free to also join us at v/PrincipiaAcademia where we discuss all things academic.
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[–] Opieswife ago
Lol thanks I also struggle sometimes with explaining what is in my head.
So sounds to me like this person's definition of zero is when we are referring to something specific like there are zero eggs but nothing is perhaps more general or more encompassing and doesn't refer to anything specific. Nothing means not only are there no eggs but there literally are no other things. Sounds silly but I believe that is what he means.
[–] VIP740 0 points 1 point 1 point (+1|-0) ago
Well, let's say we graph the formula y=√(r2-x2). And let's also say we only want real numbers. There will be values for x where y doesn't have a value.