I'm googling but having little luck with this... so, basically, what I need is a matrix to transform an arbitrary plane, in format ( i,j,k,distance ) to be co-planar with, say, the z plane ( 0,0,1,0 ) ...

Consider a compact Riemannian manifold of dimension ≥ 3 with strictly convex boundary, such that the manifold admits a strictly convex function. We show that the attenuated ray transform in the ...