slepc-3.6.3 2016-03-29
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## Mathematical Function - FN

The FN package provides the functionality to represent a simple mathematical function such as an exponential, a polynomial or a rational function. This is used as a building block for defining the function associated to the nonlinear eigenproblem, as well as for specifying which function to use when computing the action of a matrix function on a vector.

Beginner - Basic usage
| FNCreate | FN | FNType
FNDestroy | FNSetFromOptions | FNView
Intermediate - Setting options for algorithms and data structures
| FNCombineGetChildren | FNGetType | FNRationalSetDenominator
FNCombineSetChildren | FNPhiGetIndex | FNRationalSetNumerator
FNEvaluateDerivative | FNPhiSetIndex | FNSetScale
FNEvaluateFunction | FNRationalGetDenominator | FNSetType
FNGetScale | FNRationalGetNumerator |
Advanced - Setting more advanced options and customization
| FNAppendOptionsPrefix | FNGetOptionsPrefix | FNSetOptionsPrefix
FNCombineType | FNRegisterAll |
FNEvaluateFunctionMat | FNRegister |
Developer - Interfaces intended primarily for library developers, not for typical applications programmers
| FNDuplicate | FNFinalizePackage | FNInitializePackage
No deprecated routines

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