/sci/ - Science & Math

>>2887921
okay, so I should go with BMP then, right?

>I mean if light would go right besides the shadow wouldn't the shadow itself be entirely black?
no. first of all you stand between the sun and the shadow but since all the things around you reflect light (otherwise you couldn't see it) there is also light coming from the tree next to you which goes on the ground and reflects back to your eye, so it's never perfectly dark.
And yes, though interference, the light is also propagating a bit inside to the centre of the shadow (so the edges are lighter than the centre) but that's just a small effect.

>>2392908

what you said. x^3=a is of third power and the corresponding galois group has 3 elements. 3 is prime, so its Z/3Z, i.e. 0,1,2 and "+" or another representation would be (1, e^iX, e^2iX), where X is 120°, and " · ".

http://en.wikipedia.org/wiki/Galois_theory

this is why here
>>2392882
I didn't took the root

>>2314025
thats not subjectivity.
You can argue all you wan't if its wise to use it (non-constructive proves ;_;)
What one likes is subjective, yes.
But lets say a (good) mathematican understands the implications and can still use this or that axiome set and calculate ect., if he likes the axioms of not.