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Old 20th October 2004, 02:59 PM   #1 (permalink)
Rebelius
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Talking Maths again
Right, this one's not my homework, it's for my sister's boyfriend's thesis for his phd which he already got around by approximation, he just wants to know if it can be done.

he needs to integrate the attatchment

don't worry about all the mad constants, it's just the xs and the e that you need to do anything with i think...
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Old 20th October 2004, 03:37 PM   #2 (permalink)
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it sure is a pretty picture.....
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Old 20th October 2004, 03:43 PM   #3 (permalink)
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Erghh that would take me a bit of time to try and figure out. Prob need to look at notes and all so sorry I ain't no use.
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Old 20th October 2004, 03:48 PM   #4 (permalink)
All_in_black
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For some of you this formula will take the course of your natural lives to work out. For most of you, you'll never decipher it.

I have already worked it out.
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Old 20th October 2004, 03:50 PM   #5 (permalink)
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Quote:
Originally Posted by All_in_black
For some of you this formula will take the course of your natural lives to work out. For most of you, you wont even bother trying.
Thats what you really mean
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Old 20th October 2004, 03:55 PM   #6 (permalink)
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I agree with Gemma, it is a very lovely picture.
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Old 20th October 2004, 04:34 PM   #7 (permalink)
Andy Pandy
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Done.
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Old 20th October 2004, 05:01 PM   #8 (permalink)
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the answer is 4
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Old 21st October 2004, 12:32 PM   #9 (permalink)
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Quote:
Originally Posted by Rebelius
Right, this one's not my homework, it's for my sister's boyfriend's thesis for his phd which he already got around by approximation, he just wants to know if it can be done.

he needs to integrate the attatchment

don't worry about all the mad constants, it's just the xs and the e that you need to do anything with i think...

you need to use TeX to make that legible..


What's the context btw?

Plus, what about Mathematica ?
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Old 21st October 2004, 03:24 PM   #10 (permalink)
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mathematica cant do it (he tried integrals.wolfram.com which is powered by mathematica)

Quote:
Originally Posted by Iain
the context is that it is the probability density function of an inverse normal distribution
i.e. Y is normal distributed, X=Y^-1.
and we are looking at the probability density function of X, f_X( x )
I don't have or know all the commands and stuff for TeX so is this any better?
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Old 22nd October 2004, 09:40 AM   #11 (permalink)
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I'll give it a go when I get back from Ninjafest in London this weekend.
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Old 24th October 2004, 10:44 PM   #12 (permalink)
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Quote:
Originally Posted by Rebelius
Right, this one's not my homework, it's for my sister's boyfriend's thesis for his phd which he already got around by approximation, he just wants to know if it can be done.
IS your sister not 15? Is this man a dirty paedo?[/off topic]
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Old 24th October 2004, 10:45 PM   #13 (permalink)
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Quote:
Originally Posted by Rosco
IS your sister not 15? Is this man a dirty paedo?[/off topic]


He has older sisters too.
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Old 24th October 2004, 10:46 PM   #14 (permalink)
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ah. i was trying my best Sherlock Holmes. Not a great impression, i may add.
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