i found this solution to a problem but I can't figure out why 2*int(du/u^2) becomes -2/u

Introduction to:

Anti-Derivatives

When they say “any anti-derivative” vs “general anti-derivative” is this:

sin(x) + c —> general

sin(x) + 1; sin(x) —> 2 examples of any

Undid your velocity. It’s now a goddamn position function.

You think I’m scared of velocity?

Ohohoho! You don’t know the half of it. I’ve got a list of your best u-sub moves and I got a sheet of inverse trig function integrals and a mind that can undo anything you got planned.

Accumulation?

You make me laugh.

The only thing you’ll accumulate is my fist!

Because it's not a dream

It's nightmare

Where did today go? I feel as if I did more today than I have done the past few days, but I can't really remember what it all was.

I had lunch with Tina today. We talked quite a bit, and she is definitely an interesting character to talk to. She does have violent tendencies, but she is never irrational and she always manages to bring up some decent points. Talking to her is rather enjoyable. 

I spent a lot of time today studying for my calculus final tomorrow. It is my final final for the semester, and it is also one of the ones I need to work the hardest for. I have spent a number of hours redoing the old tests and preparing myself mentally for this test. I hate it when a single test has such a magnitude, and in college, that is pretty much every single test. I was easier in high school when you were able to bomb a test or two and still sit there with a grade to be proud of.

I went to dinner with Zoe. There were mostly new people there that I met, and this one girl I spoke with was very entertaining. She was giggly and humorous. She was also there with her boyfriend. -_-. But he was also pretty good-natured and I got along well with the pair of them. For awhile, I got to act like my old self. I was goofy, cracking jokes and insults, and smiling a bit. Zoe seems to be able to find situations for me that can make me happy. For that, I thank her.

I also have one confession to make. I've signed on to this app on my iPhone that focuses heavily on hooking up and dating. I signed up during Thanksgiving, but my matches were nonexistent for awhile. Then this one very pretty girl matched with me. So I messaged her and she's been messaging back. It's nice to have a girl to talk to again.