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Unformatted text preview: Differential Equations Definitions and Terminology An equation containing the derivatives of one or more dependent variables with respect to one or more independent variables is said to be a differential equation. Examples: Differential equations are classified by: 1) Type a. Ordinary Differential Equations b. Partial Differential Equations 2) Order The order of a differential equation is the order of the highest derivative in the equation. Note: Dont confuse the order of a derivative with the power to which the derivative is raised. 3) Linearity An n th-order ordinary differential equation is linear if and only if: a) The dependent variable and all its derivatives are to the 1 st degree. b) Each coefficient depends at most on the independent variable x . Examples of linear differential equations Examples of nonlinear differential equations Of course, what we will be concerned with in this course is finding solutions to differential equations....
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