Given a complete set of initial conditions, modern computers can integrate on the order of one thousand simultaneous nonlinear ordinary differential equations. One aim of the theory of invariant imbedding is to show how to use this capacity to resolve significant problems in transport theory. This Memorandum shows how to compute internal intensities when a finite homogeneous slab is illuminated by uniform parallel rays of radiation. It is assumed that there is absorption and isotropic scattering in the slab. 23 pp. Bibliog.
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