![]() The result of eliminating one arbitrary constant yields to a first-order differential equation, and eliminating two arbitrary constants yields to a second-order differential equation. The solution is obtained by assigning particular values to the arbitrary constants in the general solution of the differential equation, and then the resulting solution is a particular solution. Variables are of two types: Independent Variables and Dependent ariables. Variables are used in Statistics as data items and are mostly used to express numbers and measurable characteristics. Depending upon the number of variables, linear equations can be of the following types: When the linear equation has only one variable, it is called a linear equation in one variable. The solution of a differential equation is an expression for the dependent variable in terms of the independent variable which satisfies the given differential equation, so the solution can be classified into two types Ī solution that consists of as many arbitrary constants is called a general solution. Most commonly used letters in algebraic equations are x, y and z.
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