| --- Log opened Sat May 04 00:00:18 2013 |
| 00:18 | | ToxicFrog|W`rkn is now known as ToxicFrpg |
| 00:18 | | ToxicFrpg is now known as ToxicFrog |
| 01:58 | < sshine> | Derakon, Integral[ e^(x^2) ] by substitution, I end up with u = 2^x, Integral[ e^u * 1/(2x) du ], which seems unfortunate since I haven't gotten rid of the x here. what am I missing when the inner function doesn't differentiate to a constant in one go? |
| 01:58 | < sshine> | sorry, u = x^2 of course. |
| 02:03 | < sshine> | err, never mind. this should give me an exercise when I've slept. :) |
| 02:05 | <&Derakon> | Yeah, to tell the truth I've forgotten most of how to integrate myself. |
| 02:08 | < sshine> | I wanted to find a formula for the cumulative distribution function for the normal distribution with parameters (0,1). |
| 02:11 | < sshine> | (call it F.) but then I found out that matlab had a function for something even more precise: calculating F(y)-F(x): norminv([... ...],0,1). |
| 02:12 | < sshine> | I took a course called data analysis, and I feel that I'm brushing up on a lot of things I haven't used in a long while. |
| 02:13 | < sshine> | and a lot of things I've never done yet. |
| 02:13 | < sshine> | I'm following the Coursera course on machine learning on the side because they get a bit more practical. |
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| --- Log closed Sun May 05 00:00:33 2013 |