Also known as singularity, singular point
in general a point at which a given mathematical object is not defined, or a point of an exceptional set where it fails to be well-behaved in some particular way, such as differentiability
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In mathematics, a singularity is a point at which a given mathematical object is not defined, or a point where the mathematical object ceases to be well-behaved in some particular way, such as by lacking differentiability or analyticity.
For example, the reciprocal function
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).