BUG: Do not use power equation when errRatio is 0
BUG: Do not use power equation when errRatio is 0

naucoin/VTKSlicerWidgets,sgh/vtk,jeffbaumes/jeffbaumes-vtk,ashray/VTK-EVM,jeffbaumes/jeffbaumes-vtk,spthaolt/VTK,daviddoria/PointGraphsPhase1,Wuteyan/VTK,sgh/vtk,Wuteyan/VTK,candy7393/VTK,johnkit/vtk-dev,demarle/VTK,keithroe/vtkoptix,berendkleinhaneveld/VTK,aashish24/VTK-old,biddisco/VTK,jeffbaumes/jeffbaumes-vtk,msmolens/VTK,naucoin/VTKSlicerWidgets,gram526/VTK,ashray/VTK-EVM,SimVascular/VTK,johnkit/vtk-dev,jmerkow/VTK,keithroe/vtkoptix,demarle/VTK,arnaudgelas/VTK,berendkleinhaneveld/VTK,collects/VTK,candy7393/VTK,jeffbaumes/jeffbaumes-vtk,cjh1/VTK,candy7393/VTK,keithroe/vtkoptix,sumedhasingla/VTK,Wuteyan/VTK,gram526/VTK,sankhesh/VTK,jeffbaumes/jeffbaumes-vtk,Wuteyan/VTK,gram526/VTK,johnkit/vtk-dev,spthaolt/VTK,johnkit/vtk-dev,sankhesh/VTK,jmerkow/VTK,demarle/VTK,hendradarwin/VTK,berendkleinhaneveld/VTK,SimVascular/VTK,cjh1/VTK,arnaudgelas/VTK,sankhesh/VTK,aashish24/VTK-old,daviddoria/PointGraphsPhase1,SimVascular/VTK,spthaolt/VTK,ashray/VTK-EVM,candy7393/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,sgh/vtk,daviddoria/PointGraphsPhase1,biddisco/VTK,demarle/VTK,msmolens/VTK,candy7393/VTK,hendradarwin/VTK,biddisco/VTK,biddisco/VTK,spthaolt/VTK,arnaudgelas/VTK,collects/VTK,Wuteyan/VTK,collects/VTK,keithroe/vtkoptix,collects/VTK,gram526/VTK,jmerkow/VTK,sgh/vtk,sankhesh/VTK,arnaudgelas/VTK,collects/VTK,cjh1/VTK,demarle/VTK,mspark93/VTK,candy7393/VTK,SimVascular/VTK,mspark93/VTK,spthaolt/VTK,gram526/VTK,spthaolt/VTK,keithroe/vtkoptix,sumedhasingla/VTK,sgh/vtk,demarle/VTK,biddisco/VTK,arnaudgelas/VTK,sumedhasingla/VTK,sankhesh/VTK,sgh/vtk,SimVascular/VTK,keithroe/vtkoptix,keithroe/vtkoptix,aashish24/VTK-old,SimVascular/VTK,cjh1/VTK,aashish24/VTK-old,mspark93/VTK,berendkleinhaneveld/VTK,sankhesh/VTK,sumedhasingla/VTK,Wuteyan/VTK,jeffbaumes/jeffbaumes-vtk,msmolens/VTK,gram526/VTK,daviddoria/PointGraphsPhase1,daviddoria/PointGraphsPhase1,ashray/VTK-EVM,sankhesh/VTK,berendkleinhaneveld/VTK,johnkit/vtk-dev,jmerkow/VTK,candy7393/VTK,aashish24/VTK-old,msmolens/VTK,mspark93/VTK,jmerkow/VTK,SimVascular/VTK,cjh1/VTK,cjh1/VTK,Wuteyan/VTK,hendradarwin/VTK,SimVascular/VTK,jmerkow/VTK,aashish24/VTK-old,arnaudgelas/VTK,sumedhasingla/VTK,hendradarwin/VTK,hendradarwin/VTK,keithroe/vtkoptix,biddisco/VTK,msmolens/VTK,demarle/VTK,mspark93/VTK,candy7393/VTK,mspark93/VTK,berendkleinhaneveld/VTK,msmolens/VTK,johnkit/vtk-dev,naucoin/VTKSlicerWidgets,mspark93/VTK,ashray/VTK-EVM,naucoin/VTKSlicerWidgets,collects/VTK,naucoin/VTKSlicerWidgets,hendradarwin/VTK,msmolens/VTK,ashray/VTK-EVM,jmerkow/VTK,jmerkow/VTK,daviddoria/PointGraphsPhase1,demarle/VTK,biddisco/VTK,sumedhasingla/VTK,gram526/VTK,sumedhasingla/VTK,spthaolt/VTK,ashray/VTK-EVM,ashray/VTK-EVM,gram526/VTK,hendradarwin/VTK,mspark93/VTK,naucoin/VTKSlicerWidgets,sumedhasingla/VTK,johnkit/vtk-dev,msmolens/VTK