add_sigma.m bch_decoder_test.m bch_encoder_ld.m bch_encoder_ldd.m bch_encoder_shift.m bch_encoder_test.m bch_transmission_test.m berlekamp_sigma.m find_root.m galois_field_2_4_xa.m galois_field_2_4_xab.m galois_field_adder.m power_to_vector.m syndrome_2_4.m