[ { "file_id": "Xa2jPbURTjQ", "query_id": 0, "timestamp": 1684512668939.0, "annotatedSourceSentencesIndices": [ 427, 428 ], "names": [ "annotator1" ], "text": "can anyone explain how the 5th column of w8 came out to be?" }, { "file_id": "Xa2jPbURTjQ", "query_id": 1, "timestamp": 1684512757144.0, "annotatedSourceSentencesIndices": [ 316, 317, 318, 319, 320, 321, 322, 323, 324 ], "names": [ "annotator1" ], "text": "Question\n23:40 - so you have H2 and to build H4 you did H2(H2)\nTo get H8 you did H2(H4) but do H4(H2) = H8 as well?\nBecause I was thinking if you put H4(H4) you would end up with 16 terms and that should be the same as making H4(H2(H2)) since, well, H2(H2) = H4..." }, { "file_id": "Xa2jPbURTjQ", "query_id": 3, "timestamp": 1684512777130.0, "annotatedSourceSentencesIndices": [ 221 ], "names": [ "annotator1" ], "text": "In 17.03, Why UU transpose is symmetric?" }, { "file_id": "Xa2jPbURTjQ", "query_id": 5, "timestamp": 1684192613269.0, "annotatedSourceSentencesIndices": [ 81, 82, 93, 79, 81, 82, 93 ], "names": [ "annotator1", "annotator2" ], "text": "for a square matrix with orthogonal columns will ||Qx||^2 = || x ||^2 hold or the columns have to be orthonormal for this equality to hold ??? a bit confused please help" } ]