Peaches and Dulcinea: delta (and stuff)

I was feeling proud of myself, with today's train-of-thought:

Delta (change)
Amongst the various meanings of "Delta," like the name, and the part of a river,
Is the meaning "Change." As the river goes on, it *changes* (for example) in depth and speed, due to whatever reasons (dead bodies, sewage.)
Yep, pretty proud.
Then I read this:

Sorry this is so small. Maybe if you click on it??

I tried to extract the text but it looked so unreadable I erased it.
Let's (uh) review:
Delta, Grade, Slope, tilt....and those are the simplified words.
Not proud anymore.

It's a train-car within the Delta train.
The "delta" of a line (or the slope or the grade or the angle or the tilt or the ratio) ,

ya know what, nevermind,

People spent THOUSANDS of years making this shit complicated, who am *I* to try and decipher it here.

(But I did wonder about that little upside-down "9" or is it a backwards "6".

Lemme guess, it means "Lambda" right? Cuz we all feel smarter translating everything into greek.

But, see, △ is easy(?), and they can't have that.
It must be hard enough to look Upper crust.

(alt+25b3 is "Triangle"/"Pointy-thing/"delta" (in Greek)
△! Too easy, only took 3-min. to look up and enter correctly (because, there's at least two codes)

Wait, I can do this! ³ OK no, I can't.

Š(whut?)Š

Wikipedia

”(0916),uhm, I can't type 206 and then 148 (can I?)

�� so anyway, "Pointy-thing" insists upon hex, Decimal must be deprecated or disparaged, denigrated, Too outré for the in-crowd.

陑△△(touch of dyslexia there, sorry)

∂

It's a question-forbidden (no shit:

https://www.reddit.com/r/calculus/comments/l5za0z/what_is_the_sign_next_to_y_and_x_the_inverted_6/

"I was blind and now I see!" (pshaw pfft)

Yay. Still opaque but lots better

wtf is the ∂? My editor changed my perfectly good HTML code into an unreadble letter and all's I can do now is cut and paste the accursed thing. So esoteric it isn't listed as a greek letter.

Who invented it? (see picture) 26 english and 24 (or so) greek letters weren't good enough, oooooooo noooo, they had to invent one.

The story goes, near as I can tell, that the erect-d is a full derivative,

and a limp-∂ is a partial derivative.

Clowns invent a different system &^%$# ╥ ┬ñÜ

Üx

2202Üx

2202 (FTS)ÜÜšš RšÜÜš

OmFG! ("Jeesus wept!!")

These guys invent shit so esoteric no one can actually use it:

Never accept Hex, use Decimal instead.
(Fuck hex!)
Add a Zero to the beginning of the number. (It's a fucking code, IDK)

alt08706 (for reference only; it doesn't actually work here)

(it worked in my notepad, just not Here, way to shame me, windows)

(Switching browsers)

(nuthin)

CTRL-V:

∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂∂ (ASSHOLES)

∂ (A registry entry is required, Ahhhhhhhhhhh)