Chapter on mathematics

Mathematics is the abstract science of number, quantity, and space, either as abstract concepts ( pure mathematics ), or as applied to other disciplines such as physics and engineering ( applied mathematics ).

Complex numbers

Complex numbers are useful abstract quantities that can be used in calculations and result in physically meaningful solutions.

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Differential equations

A differential equation is an equation that contains one or more functions with its derivatives. The derivatives of the function define the rate of change of a function at a point. The main purpose of differential equation is the study of solutions that satisfy the equations, and the properties of the solutions.

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