Who is familiar with Pythagoras?

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Originally Posted by isuzutoo-eh

G'day Ron, Ben,
The uni lecturers were being questioned as to what it had to do with the course we were taking-Industrial Design. The lecturer couldn't answer despite having taught maths to ID students for maybe a decade. I didn't use integration or differentiation in any part of that degree and neither did my fellow students.
And this is why I stand by my opinion that maths sucks :D

P.S. The uni physics classes weren't part of that degree...

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What has Industrial Design got to do with mathematics anyway?

The integral of x^x dx. I like a good puzzle,...sets my mind working.

Ok...x^x needs to be expressed as a Power Series. As I mentioned above,..express x^x as e^xlnx and then using the Maclaurin Series for e^x expand e^xlnx. In closed form this is the summation from n = 0 to infinity of (x^n(lnx)^n)/n!. This expression can be integrated term by term and there is a considerable quantity of work to cover in order to obtain the solution.

Limits are set from 0 to 1 and the integral of x^x dx is finally shown to be the summation from n = 1 to infinity of (-1)^n-1/n^n

Ron.

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Originally Posted by slug_burner

What has Industrial Design got to do with mathematics anyway?

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Not a lot, but we use basic geometry a bit...ID comes under the school of engineering at UWS and every engineering student has to do maths. Year 12 maths wasn't even a prerequisite when I started the degree!

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Originally Posted by RoverP6B

The integral of x^x dx. I like a good puzzle,...sets my mind working.

Ok...x^x needs to be expressed as a Power Series. As I mentioned above,..express x^x as e^xlnx and then using the Maclaurin Series for e^x expand e^xlnx. In closed form this is the summation from n = 0 to infinity of (x^n(lnx)^n)/n!. This expression can be integrated term by term and there is a considerable quantity of work to cover in order to obtain the solution.

Limits are set from 0 to 1 and the integral of x^x dx is finally shown to be the summation from n = 1 to infinity of (-1)^n-1/n^n

Ron.

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just did that in class

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Originally Posted by schmierer LR at singleton

just did that in class

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i use to be quite good at maths at one stage i was ranked 96th in the state which was out of 16500 students oh how things have changed

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Originally Posted by schmierer LR at singleton

i use to be quite good at maths at one stage i was ranked 96th in the state which was out of 16500 students oh how things have changed

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You talking to yourself mate, quoting yourself?
What happened to your ranking, was that 'Before AULRO' for you? :cool: