“signum”的概念、定义、翻译、参考文献-科学参考

单词	signum
释义	signum [`sig·nǝm] ^MATHEMATICS The real function sgn(x ) defined for all x different from zero, where sgn(x ) = 1 if x > 0 and sgn(x ) = -1 if x 0.
随便看	lobe-half-power width lobeline lobe penetration lobe switching lobing loblolly pine lobopodia Lobosia lobotomy Lobry de Bruyn-Ekenstein transformation lobster lobular pneumonia lobule local action local algebra local anesthetic local angular momentum local apparent noon local apparent time local-area network local-area underwater navigation system local arm local attraction local base local base level

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