/sci/ - Science & Math

Unanswered questions from the previous thread:
Math questions:
>>11424623
>>11426913 [lad in /mg/ solved it]
>>11428072
>>11430348
>>11432228
>>11432463 [Very convoluted.]
>>11435174 [lad in /mg/ solved it]
>>11437535

Physics questions:
>>11427896

Stupid questions:
>>11423676
>>11424021
>>11426013
>>11426028 [5 questions]
>>11428698
>>11428989
>>11429265 [Dude made his own thread later and solved it.]
>>11429376 specified by >>11429408
>>11430113
>>11432537
>>11433635
>>11434338
>>11434532
>>11435410 [I have literally no idea what he's talking about.]
>>11435982
>>11437303
>>11437543

>>11187972
I'll make a short addendum on this.
If you go by the argument laid out here, https://math.stackexchange.com/questions/495119/what-is-gcd0-0 , then it's natural to consider gcd(0, 0) to be zero.
However, defining gcd in terms of that ordering forces you to specify that you're picking natural numbers, whereas "largest integer" automatically implies that.
>>11187984
The course should have a name like "Differential Topology", "Smooth manifolds", "manifolds", "advanced calculus" or "differential forms", but it depends a lot.