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Update DG_Sn_Chebyshev.py#5

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wbennett39 wants to merge 11 commits into
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Update DG_Sn_Chebyshev.py#5
wbennett39 wants to merge 11 commits into
DrRyanMc:mainfrom
wbennett39:main

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checks errRMS at chebyshev 0s. Runs the finite medium problem 2 ways:
mode = "finite" stops the grid from going past 1. "finite2" sets sigma_s, sigma_t to 0 past 1.

checks errRMS at chebyshev 0s. Runs the finite medium problem 2 ways:
mode = "finite" stops the grid from going past 1. "finite2" sets sigma_s, sigma_t to 0 past 1.
mode = "finite" (moving mesh) and mode = "finite2" (static mesh) both return the same result. Solver only saves the last timestep. RMS data is saved after solving N_space in N_spaces.
newton_cotes option for weights
Ditched Newton-Cotes, wrote an algorithm for trapezoidal weighting. For finite problem, Ilham's results plot automatically.
trapezoidal rule quadrature- still under the name "newton_cotes"
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