STSHIFT

STSHIFT = “shift” - A shift of origin, where the spectrum is shifted by a constant amount.

Notes

The operator in this ST is \(B^{-1}A-\sigma I\), where \(A\) and \(B\) are the matrices set with STSetMatrices() and the shift \(\sigma\) is given in STSetShift().

This is the default ST. If no shift is given, the default is \(\sigma=0\), i.e., no transformation.

See Also

ST: Spectral Transformation, ST, STType, STSetType(), STSetMatrices(), STSetShift()

Level

beginner

Location

src/sys/classes/st/impls/shift/shift.c

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