noun
partial differential equation
Technical term in mathematics; refers to an equation involving partial derivatives of an unknown function.
偏微分方程式は物理学や工学でよく使われる。
Partial differential equations are often used in physics and engineering.
微分方程式 is a broader term for differential equations; 偏微分方程式 specifically involves partial derivatives.
Compound of 偏微分 (partial differentiation) and 方程式 (equation).