- 歐拉示性數(shù)
- 歐拉特征數(shù)
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euler characteristic中文什么意思
百科釋義
In mathematics, and more specifically in algebraic topology and polyhedral combinatorics, the Euler characteristic (or Euler?Poincaré characteristic) is a topological invariant, a number that describes a topological space's shape or structure regardless of the way it is bent. It is commonly denoted by chi (Greek letter chi).
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