虚きょ式しき

noun

imaginary expression

Rare term used in mathematics or logic for an expression involving imaginary numbers or a formal expression without concrete referent. Not in common everyday use.

• 数すう学がくの分ぶん野やでは、虚きょ式しきは虚きょ数すうを含ふくむ式しきを指さすことがある。

  In mathematics, 虚式 can refer to an expression containing imaginary numbers.