bfieldtools.integrals.gamma0¶

bfieldtools.integrals.gamma0(R, reg=1e-13, symmetrize=True)¶

1/r integrals over the edges of a triangle called gamma_0 (line charge potentials).

NOTE: MAY NOT BE VERY PRECISE FOR POINTS DIRECTLY AT TRIANGLE EDGES.

Parameters

Rndarray (…, N_triverts, xyz): displacement vectors (r-r’) between Neval evaluation points (r) and the 3 vertices of the Ntri triangles/triangle.
reg: float, a small value added to the arguments of the logarithm,: regularizes the values very close to the line segments
symmetrize: recalculates the result for by mirroring: the evaluation points with respect the line segment mid point to get rid off the badly behaving points on the negative extension of the line segment

Returns