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See also: 🝱

U+22A0, ⊠
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Mathematical Operators

Translingual

Etymology

Compare , , and .

Symbol

  1. (functional analysis) Free multiplicative convolution
  2. (computing, dated) ISO 2047 symbol for Enquiry
  3. (electricity) control cabinet

Usage notes

The alternative symbol of Enquiry looks similar to thicker , which is not available in Unicode.