# Differential Equations

An equation for an unknown function of one or several variables that relates the values of the function itself and its derivatives.

- A first order differential equation is linear if it has the form

**Linear Equations**

- A differential equation is homogeneous if of the form

**Homogeneous Equations**

- A differential equation is separable if it can be written

**Separable Equations**

**Standard Differentials**

**See also: **Differential Calculus, Differentiation, Integration.

**Subjects: ** Analysis