偏へん微び分ぶん方ほう程てい式しき

noun

partial differential equation

Technical term in mathematics; refers to an equation involving partial derivatives of an unknown function.

• 偏へん微び分ぶん方ほう程てい式しきは物ぶつ理り学がくや工こう学がくでよく使つかわれる。

  Partial differential equations are often used in physics and engineering.