“Euler characteristic of a topological space X”的概念、定义、翻译、参考文献-科学参考

单词	Euler characteristic of a topological space X
释义	Euler characteristic of a topological space X [`ȯi·lǝr ´kar·ik·tǝ`ris·tik ǝv ǝ ´täp·ǝ¦läj·i·kǝl ¦spās `eks] ^MATHEMATICS The number χ (X ) = ∑(-1)^qβ_q , where β_q is the qth Betti number of X.
随便看	Crinoidea crinoline Crinozoa cripple crippled leap-frog test crippled mode crisis crispation number crissum crista cristate Cristispira cristobalite crit crith critical critical absorption wavelength critical altitude critical angle critical angle of attack critical angle refractometer critical anode voltage critical area critical assembly critical bottom slope

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