Recent content by ottjes

Can anybody explain to me what the Born approximation is?

n -> [oo] An < +/- [oo]

substitution eg. x^4 + x^2 = 0 now y=x^2 --> y^2 + y = 0 you can solve this for y (= x^2)

google: erf(x) error function first result: http://www.mathworks.com/access/helpdesk/help/techdoc/ref/erf.shtml

I have to write a short article about a physics subject, i can pick my own subject. Problem is i don't know any fun subject :( I am second year physics student, university

first show where you got stuck (policy) then we'll be glad to help

very confusing all those w's and m's but i think F-w1 != m(-a)

Trek just because i like it more

Thanx all, glad to know i did understand it ;) My fault was that i did R=1/R1 + 1/R2 which is (R1+R2)/(R1R2) But R = 1 / (1/R1 + 1/R2) which is (R1R2)/(R1+R2)

just write everything out eg. (x+a)^2=x^2+2xa+a^2 maybe rewrite some terms then and you will see that it is divisible by x^2 + (a + b)x +ab

my list: Bad Religion Muse The Music, They are great! And you will know us by the trail of dead Nirvana Guano Apes Rancid Coldplay After Forever Heather Nova The White Stripes ...

don't know most bands my list: The Music And you will know us by the trail of dead After Forever Heather Nova I Against I Nightwish ...

the reading bit of german and french is for everyone you can choose to also learn it speak/listen/write germand a/o french, which i obviously didn't do

what you said is what i meant, i am not good in that solving that kind of problems but if you can make a picture maybe i can help, am now in doubt whoich circuit you mean i can think of 2 different circuits now

[inte]Cos[x]/[x^2+1] dx = [pi]/e int from -[oo] to [oo]