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Jyutping bat1 ho2 dou6
Pinyin bù kě dǎo

Definitions (CC-CEDICT)
  1. not differentiable (function in calculus)
Examples (Wiktionary)
  1. Mandarin
    狄利克雷函数处处不连续,处处不可导。
    狄利克雷函數處處不連續,處處不可導。
    dí lì kè léi hán shù chù chù bù lián xù , chù chù bù kě dǎo .
    • The Dirichlet function is nowhere continuous and nowhere differentiable.