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Tabulated1D array evaluation snaps points within 1e-5 RELATIVE of an endpoint to it (np.isclose default rtol), zeroing cross sections just above thresholds

Status: Open.

#24 In shimwell/endf-python;

· shimwell opened on Aug 10, 2026

chain.replace_missing walks off the end of ATOMIC_SYMBOL and raises KeyError: -1

Status: Open.

#22 In shimwell/endf-python;

· shimwell opened on Aug 9, 2026

AngleDistribution.forward_fraction returns uninitialized memory for ACE-derived distributions, so removal_xs is nondeterministic there

Status: Open.

#21 In shimwell/endf-python;

· shimwell opened on Aug 8, 2026

ACE reader fails on denormal floats under numpy 2, existing missing-E recovery never runs

Status: Open.

#20 In shimwell/endf-python;

· shimwell opened on Aug 8, 2026

parse_mf7_mt4 reads LI from each temperature record and then discards it

Status: Open.

#16 In shimwell/endf-python;

· shimwell opened on Aug 8, 2026

MF=1 MT=458 reports ZA as a float where every other section reports an int

Status: Open.

#14 In shimwell/endf-python;

· shimwell opened on Aug 8, 2026

get_tab2_record uses int() where the rest of the reader uses int_endf()

Status: Open.

#13 In shimwell/endf-python;

· shimwell opened on Aug 8, 2026

get_intg_record writes every element of a row to the same column

Status: Open.

#11 In shimwell/endf-python;

· shimwell opened on Aug 8, 2026

Add high-level access to MF=8/9/10 radionuclide production data

Status: Open.

#4 In shimwell/endf-python;

· jon-proximafusion opened on Jul 6, 2026