/sci/ - Science & Math

[Anonymous No.3613601]

hey guys what symbol is this and how do I pronounce it

it keeps showing up in my differential equations textbook and my mind doesn't know how to read it

I have been calling it sillyloop

god damn greek bullshit

[Anonymous No.3613620]

The circle is a vagina. It's crossed out because you'll never get it.

[Anonymous No.3613618]

it's called a zero dumbass

[Anonymous No.3613628]

Null

[Anonymous No.3613629]

Null, "Empty Set", etc. Depending on circumstances. It basically means "nothing", but it's not the same as zero.

[Anonymous No.3613631]

Zero. We had to cross out all of our zeros in the Navy just like that.

[Anonymous No.3613632]

Phi, pronounced like 'thi' in thief.

[John Boehner !JbOehnERtM No.3613639]

"Sillyloop" is the preferred term in Britain.

[Anonymous No.3613669]

phi, "thigh"

[Anonymous No.3613670]

if the line is vertical, it's a phi.

if the line is diagonal, it represents the empty set, { }.

[Anonymous No.3613702]

>>3613670
I think its phi because they are using it like
y = phi(x)
empty set doesn't really make sense like that

>>3613620
it's k I'm gay

[Anonymous No.3613714]

>>3613702
>posting pony
>admitting homosexuality

redundant redundancy is redundant

[Anonymous No.3613780]

The empty or null set, not the same as zero or nothing. Its more like a box with nothing in it

[Anonymous No.3613848]

<span class="math">\varnothing[/spoiler] = empty set
<span class="math">\phi[/spoiler] = phi. Rhymes with eye. Also can be written <span class="math">\varphi[/spoiler]

[Anonymous No.3613857]

>>3613848
Uh maybe <span class="math">\empyset[/spoiler] = empty set. I blame codecogs for that.

[Anonymous No.3613867]

>>3613857
GODDAMMIT. <span class="math">\emptyset[/spoiler]

[Anonymous No.3613909]

Greekfag here.

I hear a lot of you pronounce it "fie" (>>3613669 && >>3613848).
I don't know how well the transliteration comes across, but you'd sound like an idiot.

We pronounce it "fee" (almost exactly like the English word 'fee'). So I don't know if this is something that is intentionally different between the languages, but it's always bothered me.


tl;dr "fee" not "fie"

[Anonymous No.3613973]

>>3613909
thank you greekfag (and others)

now I can read my diff equations book with peace of mind

[Anonymous No.3613980]

phi is used for generic functions, like f or g

[Anonymous No.3614006]

>>3613909
Isn't <span class="math">\pi[/spoiler] pronounced pee in Greek as well? It would never be pronounced like that in English. (Disclaimer: I don't actually know how it's pronounced in Greek, but I knew a French guy who pronounced it pee.) What about <span class="math">\chi[/spoiler] and <span class="math">\psi[/spoiler]?

[Anonymous No.3614256]

>>3614006
Yeah, I have a minor pet peeve about those too.
I think trying to change "pie" to "pee" would be pretty useless at this point because it's so highly used, so I gave that one up.

<span class="math">\chi[/spoiler] and <span class="math">\psi[/spoiler] also have problems.
The correct way to pronounce <span class="math">\chi[/spoiler] would be "he" (as in the word 'he'). This one would be kinda hard to change because everyone pronounces it so differently - like "chai" as if it's fucking tea or something.
And <span class="math">\psi[/spoiler] would be something like "psee" instead of "psai" (which is what most people do).

In general, the Greeks don't use that "i" (as in "I went to the store") sound at the end. Like how most people say <span class="math">\pi[/spoiler] as "pie" and <span class="math">\psi[/spoiler] as "psai". It's almost always an "ee" sound like in "fee".