Amplification factor

In general an amplification factor is the numerical multiplicative factor by which some quantity is increased.

* In structural engineering the amplification factor is the ratio of second order to first order deflections.
* In electronics the amplification factor, or gain, is the ratio of the output to the input of an amplifier, sometimes represented by the symbol AF.
* In numerical analysis the amplification factor is a number derived using Von Neumann stability analysis to determine stability of a numerical scheme for a partial differential equation.

## References

* "Developments in Tall Buildings 1983". ISBN:0-87933-048-1. Page 489.
* "Numerical Computation of Internal & External Flows". ISBN:978-0-7506-6594-0. Page 296.

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