[ET Trac] [Einstein Toolkit] #102: Implement 4th order finite differencing in Exact

[Einstein Toolkit]

#102: Implement 4th order finite differencing in Exact
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 Reporter:  eschnett     |       Owner:     
     Type:  enhancement  |      Status:  new
 Priority:  minor        |   Milestone:     
Component:  Cactus       |     Version:     
 Keywords:               |  
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 Thorn EinsteinInitial/Exact uses finite differencing to calculate the
 extrinsic curvature. It uses currently 2nd order stencil. The attached
 patch implements 4th order finite differencing, which reduces the error
 significantly.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/102>
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