If almost everyone can earn money on stocks using good strategies. Why does a company shares profit or losses(or i do not know what the proper term is). What benefits company received? I came here because i cant find or not satisfied by the answers given by google.
After a company has issued shares, why should it care if the value of the shares fluctuate? Since the shares are now publicly traded, if the value fluctuates, that is strictly a transaction between buyer and seller, none of whom are directly related to the company. E.g. if I sell X an iPhone for $100, why should I care if X is selling the iPhone to Y for 1 dollar or 1000 dollars? I have got my $100, so I need not bother. No?
Quickly calculate date differences How do I determine if my integrated Intel graphics support "Shader Model 3"? I am trying to play a Steam game on Ubuntu.  The game requires "Graphics: Shader model 3".  How do I determine if my integrated Intel graphics support Shader Model 3?  At present, when I launch the game, I hear the audio, but the screen is entirely black.  Running glxinfo | grep OpenGL yields:  OpenGL vendor string: Intel Open Source Technology Center OpenGL renderer string: Mesa DRI Intel(R) Haswell Mobile  OpenGL core profile version string: 4.5 (Core Profile) Mesa 18.2.2 OpenGL core profile shading language version string: 4.50 OpenGL core profile context flags: (none) OpenGL core profile profile mask: core profile OpenGL core profile extensions: OpenGL version string: 3.0 Mesa 18.2.2 OpenGL shading language version string: 1.30 OpenGL context flags: (none) OpenGL extensions: OpenGL ES profile version string: OpenGL ES 3.1 Mesa 18.2.2 OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10 OpenGL ES profile extensions:   I am not sure which (if any) of the above lines answer my question. If for two suitable matrices $B$ and $C$, $AA^TB=AA^TC$ can we conclude that $A^TB=A^TC$? Let $A$ be a $m\times n$ real matrix. If for two suitable matrices $B$ and $C$, $$AA^TB=AA^TC$$ can we conclude that $A^TB=A^TC$?  I know $AA^T$ is a symmetric matrix. Every real symmetric matrix is diagonalizable. But I am not sure how to use this information. Thanks for reading and helping me out with hints. Enable disk encryption after installation I'm currently unable to access anything via the Stack Exchange app under iOS; is this a known issue? What are the applications of the ## preprocessor operator and gotchas to consider? Why does Linux show both more and less memory than I physically have installed? No CUDA and GPU option The more I use Stack Exchange, the more it is getting a knowledge-base for me. All questions, that I need for later reference I mark as favorite. Now I need to store these pages locally on my laptop. It is really time-consuming:  I could use Ctrl+S on each favorite question page  on Linux: there could be a solution with wget -N -r -l 1 &quot;https://stackoverflow.com/users/1069083/rubo77?tab=favorites&quot;  this will download all favorite questions but it creates no correct index.html Another approach would be to use the  to automatically follow into all your Stack Exchange-accounts. But that would have to be somehow limited to only favorites links on your  in each stack. cross-platform: You would need a firefox-plugin that downloads links recursively but only within the favorite-area of the  in your stack  Additionally, I would like to  and Is the prefix "pre-" meaningless in the terms "pre-heated" and "pre-board"? This question poses a paradox of meaning. The general question is whether, if two sentences (x and y) can be used in the same situation, with the same literal meaning, and x and y only differ in that x has morphological affixes that y doesn't, aren't the surplus affixes "meaningless" by the alternation test?   Take this example:  I put the chicken inside a preheated oven.    Wouldn't it make more sense to say:  I put the chicken inside a heated oven.      There is only two states an oven can possibly be in—heated or unheated.      Another example: Does first-class board the plane, or pre-board the plane?  What does that mean—to get on before you get on? SSH access to office host behind NAT router I would like to access the ssh port of my office linux host from home. Unfortunately the host is located behind a NAT router. So, the IP address is not publicly available. There is however access to another internet host (Server) which is unfortunately only non-root access. After a while of searching I do not find a suitable solution.  Following setup:   Office PC (linux, root access) behind NAT (IP not public) but full Internet access. Server PC (linux, no root access) static and public IP and full Internet access. Home PC (linux, root access) behind NAT (IP not public) but full Internet access.   Possible connections: Office PC --> Server &lt;-- Home PC  Not possible: Office PC &lt;-X- Server -X-> Home PC  Neither the Home PC, nor the Server can initiate access to the Office PC. But both the Office PC and the Home PC can initiate connections to the Server.  Reverse SSH tunnel not possible: I tried a method called reverse ssh-tunnel. Unfortunately this requires GatewayPorts on Server set to "yes" in /etc/ssh/sshd_config, where I have no root access.  In principle it should be possible:   0) On the Server I start a userspace program which listens on 2 ports (1 incoming, 1 outgoing)  1) On my office PC I run a another program which keeps a TCP connection open to the outgoing port on the server.  2) From home I connect to Server's incoming port.  There should be a standard solution for this out there.  What is the quickest and cleanest solution to solve this?  Frank Is there PvP in Diablo 3? How does it work? How to rotate the curve but not the axes? What does this box icon represent? Since I started playing, I have seen this icon in the bottom right of my screen. Clicking it does nothing.  What does this icon represent?  I'll add a PC tag, as I'm playing on PC, and it could be related to that. I'm buying a bus ticket to get to Boston 23 hours before my flight to ensure I reach my departure airport on time.  If I didn't arrange bus transport well in advance, what legal remedies would I have if a delayed bus caused me to miss my flight? Where does the energy for osmosis come from? A thought experiment:     A U-shaped tube with semi-permeable membrane at the base. The tube is completely thermally isolated from its surroundings. The liquid (solvent) is at some temperature $T$. When solute is added to one side of the tube the fluid level on that side rises until the increased pressure due to gravity ($\rho gh$) equals the osmotic pressure.   If I understand correctly, osmotic pressure could be used to do work (i.e. lift a weight as the solvent level in one side of U-shaped tube increases). Where does this energy come from? I guess it must be from the internal energy of the fluid.  At this point has the temperature of the fluid decreased?? If so, has it decreased by exactly the work done against gravity divided by the specific heat of the fluid? What does the quantitative treatment of this problem look like? Directory index forbidden by Options directive Show a,b,c congruences when $a^2+b^2=c^2$ i would like to know how to prove that if $a^2+b^2=c^2$ then   a) $3|a$ or $3|b$  b) $5|a$ or $5|b$ or $5|c$  c) $4|a$ or $4|b$   Also that $a^2+b^2+c^2+1$ can't be divisible by 8  Thank you very much! Language hints for quoted code In  I tried to add  for syntax formatting to code blocks quoted from the question. However, it seems they won't be honoured if I write them as a comment in my own part of the post, and if I include the hint in the qutotation as well then I have some ugly empty space before the code block. There should be a way to write these things properly. Showing that $\displaystyle\lim_{s \to{1+}}{(s-1)\zeta(s)}=1$ I need prove the following: ($\zeta(s)$ is the Riemann zeta function)  $\displaystyle\lim_{s \to{1+}}{(s-1)\zeta(s)}=1$  I really don't know, I have tried hard, but have obtained nothing for now.