+A **Partial Differential Equation** (PDE) is a mathematical statement involving an unknown [Function](/wiki/function) of multiple variables and their partial derivatives. These equations illuminate the dynamics of diverse physical systems, from [Wave](/wiki/wave) propagation to heat flow, offering insight into change across space and time.
+## See also
+- [Ordinary Differential Equation](/wiki/ordinary_differential_equation)
+- [Calculus](/wiki/calculus)
+- [Physics](/wiki/physics)