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词汇 quarter square
释义

Definition of quarter square in English:

quarter square

noun
Mathematics
  • One quarter of the square of a number (especially with reference to a method for multiplying two numbers by subtracting one quarter of the square of their difference from one quarter of the square of their sum); usually in plural.

Origin

Mid 19th century; earliest use found in The Penny Cyclopaedia.

Definition of quarter square in US English:

quarter square

noun
Mathematics
  • One quarter of the square of a number (especially with reference to a method for multiplying two numbers by subtracting one quarter of the square of their difference from one quarter of the square of their sum); usually in plural.

Origin

Mid 19th century; earliest use found in The Penny Cyclopaedia.

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