1"><span>Function based examples
</span></a><a href = "#H_AA52FBA9"><span>List-mode reconstruction/custom detectors
</span></a><a href = "#H_4EBE9EC4"><span>CT data</span></a></div></div><h2  class = 'S5' id = 'H_4ADEBAEF' ><span>Computing the forward and/or backward projections</span></h2><div  class = 'S1'><span>When you are manually computing the forward and/or backward projections, it is recommended to use the </span><a href = "forward_backward_projections_example.m"><span>forward_backward_projections_e