Mathematics
Kristoffer Helander's user avatar
Kristoffer Helander's user avatar
Kristoffer Helander's user avatar
Kristoffer Helander
  • Member for 7 years, 7 months
  • Last seen more than a month ago
  • Gothenburg, Sweden
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Interested in programming, 3D graphics, game development, history and science.

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Why is $\cos(45°) = \frac{\sqrt{2}}{2} \simeq 0.7071$ rather than $0.5$?
Dec 19, 2017
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31
How did medieval manors handle population growth? Was there room for more fields to be ploughed?
30
Were there inns and hostels in medieval Europe?
29
Why was the Roman Empire considered an empire rather than a kingdom (again)?
12
Why don't dielectric materials have coloured reflections like conductors?
11
16bit half-float linear HDR images as (diffuse/albedo) textures?

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