typo in either function call or function definition

[umair4848]

function call: (handeye.m > line: 105)
[Hcam2marker_, err] = TSAIleastSquareCalibration(Hm2w2, Hcam2grid2)

function definition: (TSAIleastSquareCalibration.m > line: 30)
function [Hcam2marker_, err] = TSAIleastSquareCalibration(Hmarker2world, Hgrid2cam)

Here it is not clear whether Hcam2grid is to be used or its inverse Hgrid2cam.
Same is the problem with other function calls for the different algorithms listed.

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Also, why the inverse is taken two times here: (handeye.m > lines: 77-78)
Hgrid2cam(:,:,correctSets) = inv(([Rc Tc;[ 0 0 0 1]]));
Hcam2grid(:,:,correctSets) = inv(Hgrid2cam(:,:,correctSets));