Alex sat in the back of the class on the first day, not quite sure what differential equations really were...

>The slope of a circle is 1 at pi/4, or at x = (sqrt(2)/2… and it’s obvious that the derivatives of a circle approaches 0 at pi/2 and infinity at 0. He suddenly realized what this meant… If you were to trace the path around a circle, starting from pi/2 and going clockwise to 0, and you were to take the derivative at every point, you would go halfway through your journey before you would ever reach your first integer number.

I learned something from this stupid story.

Is this what autists fap to?

"Um, sure. Here." He managed to sputter out as he handed her the eraser.

She started to erase a few of his slope lines. "See we just gotta--fix a couple--" she was saying as she vigorously moved the eraser back and forth. Alex watched in awe and with mouth agape as her tits bounced back and forth in front of his face. Her boobs were barely being contained by her bra and shirt. "--of these--and then you'll be set to head up there--"

Alex was hypnotized and he couldn't help it. He felt his dick fight against the fabric of his pants, knocking the binder off his lap and letting it fall to the floor. She twitched back for a second, surprised by the falling of the binder. She turned her head between him and the binder, confused for a second. She peeked around the edge of the desk and started right at his massive erection, bulging through his pants, the tip of which was wet with cum. She put her hands to her mouth and tried to suppress a smirk.

She glanced around and saw all the students were still busy up at the board. She turned and whispered to him in a teasing way, "ahh... So that's why you didn't wanna go up to the board." She tried and failed to hide a small giggle. She smiled at him and her eyes seemed to be lit by fire.

"Why don't you come by during office hours" she whispered. "I wanna make sure you're *really* ready for this class." She winked at him and walked back towards the front of the class, her ass shaking as she walked. "Alright everyone," she announced, "let's see what we got, shall we?"
...Should I stop?

No, keep going. I've read this far, I'm engaged and I want to know how it ends.

More diffy qs pls

then i ran into the room and violently fucked your mom in front of the entire class, the end.

i wont be satisfied until there's a description of an orgasm as an example of one state of a bistable system

What the fuck, OP. Come on, we're waiting.