“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	corona stabilization corona start voltage Coronatae corona tube Coronaviridae coronavirus corona voltmeter coronizing coronoid coronoid fossa coronoid process coronule Corophiidae corotating interaction regions coroutine corpora quadrigemina cor pulmonale corpus albicans corpus allatum corpus callosum corpus cardiacum corpus cavernosum corpus cerebelli corpuscle corpuscular radiation

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