John Carmack (@ID_AA_Carmack) “Making a scatter plot of 400_000 data points, some of the plots had odd gaps in” — TopicDigg
John Carmack
@ID_AA_Carmack
AGI at Keen Technologies, former CTO Oculus VR, Founder Id Software and Armadillo Aerospace
加入 August 2010
285 正在关注 1.6M 粉丝
Making a scatter plot of 400_000 data points, some of the plots had odd gaps in coverage. It took me a little while to realize that it was only when the data was farther from the origin -- it was the raw bfloat16 precision. Everything looks great from -1 to 1, but as you go past 2 and 4, the coverage gaps get larger.
My intuition didn't have it being quite so "discretely countable" at those modest numeric values.
Float32 for comparison.
显示更多
