a point at which a given function of a complex variable has no derivative but of which every neighborhood contains points at which the function has derivatives.
adjective 1. (logic, maths) (of an operator) monadic
noun 1. a grammatical form or construction that expresses a singular entity or indicates that an individual is singled out from a group, especially as opposed to a collective noun, as snowflake as opposed to snow. adjective 2. noting or pertaining to such a form or construction.
noun, Mathematics. 1. hyperbolic, sine. noun 1. hyperbolic sine; a hyperbolic function, sinh z = 1/2(ez – e–z), related to sine by the expression sinh iz = i sin z, where i = √–1 sinh Abbreviation of hyperbolic sine sinh hyperbolic sine
noun, Older Spelling. 1. Xinhailian. noun 1. a variant transliteration of the alternative name for Lianyungang