[ { "file_id": "WfEQabCGAqI", "query_id": 3, "timestamp": 1684511496045.0, "annotatedSourceSentencesIndices": [ 196, 197 ], "names": [ "annotator1" ], "text": "Do maths/science/engineering students take this class or some other multivariable calculus course like 18.024?" }, { "file_id": "WfEQabCGAqI", "query_id": 5, "timestamp": 1684511772657.0, "annotatedSourceSentencesIndices": [ 161 ], "names": [ "annotator1" ], "text": "18:09 why the range of r goes from 0 to 1? I think the definition of S in this problem needs further clarification. S should be a paraboloid of z = x^2 + y^2 between z=0 and z=1. It is a little confusing by justing saying \"above the unit disk\". " }, { "file_id": "WfEQabCGAqI", "query_id": 7, "timestamp": 1684511834173.0, "annotatedSourceSentencesIndices": [ 359, 361 ], "names": [ "annotator1" ], "text": "Isn't this theorem called after Ostrogradsky, since he is the first one to prove it?" }, { "file_id": "WfEQabCGAqI", "query_id": 8, "timestamp": 1684512043723.0, "annotatedSourceSentencesIndices": [ 226, 227, 264 ], "names": [ "annotator1" ], "text": "Wait, did he ever account for vector N not being a unit vector? He never required that the N vector represented the area of the delta slanted plane did he?" }, { "file_id": "WfEQabCGAqI", "query_id": 1, "timestamp": 1684192120438.0, "annotatedSourceSentencesIndices": [ 331, 331 ], "names": [ "annotator1", "annotator2" ], "text": "I did not understand the last step replacing dA by dxdy. The proof contained slanted plane with an angle alpha to only one axis and not a general slant in both directions. Does this proof apply when we are considering a general slant to both x and y ? Will dA=dS Cos theta still be applicable?" } ]