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what does nonlinear mean in math. Nonlinearity is a mathematical term describing a situation where the relationship between an independent variable and a dependent variable is not predictable from a straight line. On a Cartesian Plane a linear function is a function where the graph is a straight line.
The line can go in any direction but its. Instead it makes sudden changes or seems to develop in different directions at the same time. In 5 5 - 7 7 above only 6 6 is non-linear the other two are linear differential equations.
So anything thats not a linear equation is a non-linear equation.
An equation that is not a straight line when it is graphed. In the context of information technology nonlinearity describes a system whose output does not vary in proportion to its input. A nonlinear graph shows a function as a series of equations that describe the relationship between the variables. Nonlinear systems are more of a challenge to control.