NEPErrorType — SLEPc 3.24.2 documentation

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# NEPErrorType

The error type used to assess the accuracy of computed solutions.

## Synopsis

    typedef enum { NEP_ERROR_ABSOLUTE,
                   NEP_ERROR_RELATIVE,
                   NEP_ERROR_BACKWARD } NEPErrorType;

## Values

- `NEP_ERROR_ABSOLUTE` - compute error bound as \(\|r\|\)

- `NEP_ERROR_RELATIVE` - compute error bound as \(\|r\|/|\lambda|\)

- `NEP_ERROR_BACKWARD` - compute error bound as \(\|r\|/(\sum_i|f_i(\lambda)|\|A_i\|)\)

## See Also

NEP: Nonlinear Eigenvalue Problems, `NEPComputeError()`

## Level

intermediate

## Location

include/slepcnep.h

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