• Yesterday, 16:33
What do you mean "there is no graph on the positive side"? Of couse there is.
4 replies | 76 view(s)
• Yesterday, 16:12
How many "capsules" are there on the Ferris wheel?
2 replies | 43 view(s)
• April 3rd, 2020, 22:31
I am reading Aisling McCluskey and Brian McMaster: Undergraduate Topology, Oxford University Press, 2014... ... and am currently focused on Chapter...
1 replies | 190 view(s)
• April 2nd, 2020, 11:21
HallsofIvy replied to a thread f in Calculus
??what??
5 replies | 299 view(s)
• April 1st, 2020, 07:35
HallsofIvy replied to a thread Cathode and Anode in Chemistry
You can blame Benjamin Franklin and others of that time! When initially studying static electricity and the way it moves from one place to anther...
2 replies | 338 view(s)
• March 29th, 2020, 07:48
Isn't "x^2*2016x" the same as "2016x^3"?
2 replies | 179 view(s)
• March 29th, 2020, 07:41
Argh! Arithmetic! I never was any good at that!
4 replies | 147 view(s)
• March 28th, 2020, 08:15
Let me, yet again, state my dislike for the "Laplace Transform Method"! And, in fact, Prove It made a slight arithmetic error (easy to do with...
4 replies | 147 view(s)
• March 27th, 2020, 13:51
What language was this originally in? Things like "There is even one student between these boys" make no sense at all to me! What is the...
2 replies | 240 view(s)
• March 27th, 2020, 13:13
So $x^2+ y= z^2$ for x, y, and z integers. That is the same as $x^2- z^2= (x- z)(x+ z)= y$. Look at the ways to factor y: y= mn and the x- z= m, x+...
1 replies | 133 view(s)
• March 27th, 2020, 08:47
HallsofIvy replied to a thread 3.2.15 mvt in Calculus
"De jour" way? Do you think the correct way to do a problem changes from day to day?
3 replies | 193 view(s)
• March 26th, 2020, 21:12
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.4: Basis ... ......
0 replies | 149 view(s)
• March 24th, 2020, 21:54
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.4: Basis ... ... ...
0 replies | 141 view(s)
• March 24th, 2020, 21:36
Thanks GJA ... I appreciate your help ... Peter
2 replies | 180 view(s)
• March 23rd, 2020, 03:05
In a recent post I wanted to use a capital tau ... and so typed \mathcal{ \Tau_1 } but generated an error ... Can someone please help ... ... ...
2 replies | 134 view(s)
• March 23rd, 2020, 02:51
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.4: Basis ... ... ...
2 replies | 180 view(s)
• March 22nd, 2020, 07:48
We have no way of knowing what your math program will accept as an answer! Yes, the Laplace transform of -3e^{9t}+ 9 sin(9t) is -3 times the...
2 replies | 308 view(s)
• March 19th, 2020, 22:50
Thanks Oxide ... I really appreciate your help ... Peter
2 replies | 243 view(s)
• March 19th, 2020, 06:00
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 4, Section 4.1: Sequences ... ...
2 replies | 243 view(s)
• March 19th, 2020, 05:41
Hi GJA ... .. Thanks so much for the help ... Peter
2 replies | 219 view(s)
• March 18th, 2020, 22:20
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 4, Section 4.1: Sequences ... ...
2 replies | 219 view(s)
• March 18th, 2020, 22:04
Thanks Evgeny ... Your post turned out to be really helpful ... Appreciate your help ... Peter
2 replies | 184 view(s)
• March 15th, 2020, 02:15
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.2: Topological ...
2 replies | 184 view(s)
• March 14th, 2020, 19:42
Thanks for the help, Opalg ... really appreciate it ... Just working through what you have written ... Thanks again ... Peter
2 replies | 98 view(s)
• March 14th, 2020, 04:03
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.2: Topological ...
1 replies | 62 view(s)
• March 13th, 2020, 23:08
I am reading Tej Bahadur Singh: Elements of Topology, CRC Press, 2013 ... ... and am currently focused on Chapter 1, Section 1.2: Topological Spaces...
2 replies | 98 view(s)
• March 10th, 2020, 22:58
Thanks HallsofIvy ... appreciate your help ... Peter
2 replies | 235 view(s)
• March 9th, 2020, 08:09
I would say "they do not belong to the topology" rather than that "they do not belong to the topological space". The "topology" is the collection of...
2 replies | 235 view(s)
• March 8th, 2020, 21:51
I am reading Sasho Kalajdzievski's book: "An Illustrated Introduction to Topology and Homotopy" and am currently focused on Chapter 3: Topological...
2 replies | 235 view(s)
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