Holder continuity, brwonian motion
Brownian motion - Hölder continuity
Cutting strands of wire to fit plug I am a hvac tech, but my question is I have 2awg stranded and my plug is 6awg, will it matter much if I cut some strands to fit my plug? the plug is 60amp 250vac for a piece of kitchen equipment if the matters. Usage of italics in writing I have a cryptography workshop question I'm having trouble with as follows;  Person A creates a cipher $E_k(m)$ which produces a ciphertext from message $m$ using key $k$. The function inside $E$ is kept secret but the length of $E_k(m)$ is known.  Person B recommends "increasing" security of the cipher by instead doing :   $(E_k(m) \oplus m)\ ||\ (E_k(m) \oplus 1111...11)$      Does this in fact increase security of the cipher or increase new problems.  My thinking is, depending on the function within $E$, xoring the output of the cipher with the plaintext message $m$ could expose the key $k$, meaning the extra complexity is for nothing. Am I on the right track, or am I missing something?  I have tried searching for examples of similar schemes and found nothing (which probably means it's not a good scheme) but I need to justify my answer.   Any steers in the right direction would be greatly appreciated, I'm more than happy to do the research myself just unsure what specifically to look for.   Unfortunately the above context is all I have been provided for this question. What is the difference between ubuntu-18.04-server and ubuntu-18.04-live-server? On the  there is a download link for ubuntu-18.04-live-server-amd64.iso, and on the  there is a download link for ubuntu-18.04-server-amd64.iso. Before 18.04, there is only a server version. What is the difference between these 2 images? How to stop the find command after second match? How to make find command, that will show only first two matches and then end, something similiar to  just version for two records. How can I best describe "making a new discovery"? Possible to turn on Airplane mode with WiFi on only? I know the definition of Airplane mode is all communications and radio signals are blocked. But is it possible to turn off the "calling/receiving" part of the phone so your phone is not connecting to a cell tower and only allow Wifi? I've looked into a couple of apps in Google Play but they're either not working or out of date with newer versions of Android.   I know there is strong opinions on both sides of the issue but I'm worried about radiation from my phone since i use it a lot in bed and I hold the phone close to my head and face. At night I'm not worried about receiving calls, so I just want to turn off the phone part and  use WiFi. Is there a way? Or am i just crazy and paranoid? Why does exclamation mark within double quotes cause a Bash error? Please look at these commands:  $ notify-send SYNC TIME! $ notify-send 'SYNC TIME!' $ notify-send "SYNC TIME!" bash: !": event not found $   The first two commands produce a notification bubble as expected. The third gives the error shown.  and  $ echo SYNC TIME! SYNC TIME! $ echo 'SYNC TIME!' SYNC TIME! $ echo "SYNC TIME!" bash: !": event not found $   Here as well, the echo works for first two commands but not in the third.  More problems here (although I was not planning on using this): both notify-send "SYNC!TIME" and echo "SYNC!TIME" give bash: !TIME": event not found.  But both notify-send and echo work with "SYNC! TIME"  Can someone please explain why the bash: !": event not found error appears? I searched wide and far and couldn't come up with a title for a movie I watched somewhere around the mid-90ies up to early 00's as a rerun in late-night television (in Germany, specifically on Vox; but I'm sure it was an American movie to begin with).  Basically, what I remember from the story revolves around a crew in a space station or maybe space ship of some sort. Some crew members murder other crew members and there is some kind of door they are not supposed/unable to go through. Late in the movie they do go through the door and I'm pretty sure one of the first views is a skeleton of a dead security guard. It turns out the whole thing was some kind of simulation gone wrong and they find themselves to be in a (nuclear?) wasteland. And that's pretty much the revelation/wrap-up of the movie, as I recall it.  I would be delighted if somebody had any idea what movie this could be :) Thanks!  EDIT: The whole movie was in color and I think it was feature-length, not just 45 mins. Separate long math text under sum symbol into different lines? I have the following equation, where there is a lot of stuff under the sum symbol:  \begin{equation} d(\vec{x},\vec{y})=   \sum_{Z_{xy}\in\vec{Z}_{xy},\forall x\in\vec{x},\forall y\in\vec{y}}      f(Z_{xy}) \end{equation}   In the resulting document, I find it kind of hard to read. Is there a way to write the equation to make the result more readable, e.g. putting the stuff under the sum symbol on different lines? How can I trigger a command when a player is hit by a Snowball? I am trying to make a snowball that triggers a command when it hits a player in 1.15, but I don't know how to do that. When I do execute at @e[type=snowball] run gamemode spectator @a[distance=..2] it only runs the command if it goes right next to them. Creating a responsive menu system for a site with a lot of content I am currently creating a website which has a lot of content - text. For this I need a serious menu structure with 5-10 menu items per menu and at least 15 menu-blocks per main menu item.   Further it has to be accessible via mobile.   Till now I have used panels and added menus inside the panels. But mobile isn't to happy about that and the list-names in the menus overlap the content.   How would you go about solving this issue? I trust you experts here! :-) Which characters are valid in CSS class names/selectors? What characters/symbols are allowed within the CSS class selectors? I know that the following characters are invalid, but what characters are valid?  ~ ! @ $ % ^ &amp; * ( ) + = , . / ' ; : " ? &gt; &lt; [ ] \ { } | ` # There were so many discussions about an Ubuntu with RR. They were so many pros and contras. At the end ubuntu wont be changed, the 6 month cycle system wont be changed. Thats fine!   But because there are so many people who would like to use an ubuntu with RR Im asking myself why isnt there an Ubuntu Derivate with RR. I couldnt found one, there are a loooot of Ubuntu Derivates but no RR. Is it just impossible? I mean Ubuntu = 6 months cycle, so the derivate have to be a 6 month cycle too? Is there no other option? Or are there already some smart guys trying to solve this problem? Thank you! Follow up: instance control in Java without enum Prove: if $|z|=1$ than $\frac{z+1}{z-1}$ is an imaginary number Prove: if $|z|=1$ than $\frac{z+1}{z-1}$ is an imaginary number    I have tried to look at $$\frac{z+1}{z-1}=\frac{z+1}{z-1}\cdot \overline{\frac{z-1}{\overline{z-1}}}=\frac{z+1}{z-1}\cdot \frac{\overline{z}-1}{\overline{z}-1}$$  But did not get far I'd like to loop though each feature in a layer and calculate its ellipsoidal area using QgsDistanceArea() in PyQGIS 3.  Everything works fine on unprojected layers, but I get strange results when input layer is in projected CRS.  So far I have written this:  from qgis.core import *  def calculate_area(in_lyr_name, ellipsoid, units):     input_layer = QgsProject.instance().mapLayersByName(input_lyr_name)[0]      area = QgsDistanceArea()     area.setEllipsoid(ellipsoid)      features = input_layer.getFeatures()     feature_area = 0     error_features_counter = 0      for i, feat in enumerate(features):         geom = feat.geometry()         polygon_area = 0         try:             if geom.isMultipart():                 polygons = geom.asMultiPolygon()                 for polygon in polygons:                     polygon_area += area.measurePolygon(polygon[0])             else:                 polygon = geom.asPolygon()                 polygon_area = area.measurePolygon(polygon[0])              feature_area += polygon_area          except AttributeError:  # catches NoneType geometries (broken etc.)             error_features_counter += 1             pass      # calculated area is in sq. metres (see the "else" case)     if units == 'km²':         final_area = feature_area / 1e6     elif units == 'Ha':         final_area = feature_area / 10000     else:         final_area = feature_area     return final area, error_features_counter   How do I get a constant result that does not depend on the presence of projection? How come  with  set to dragons didn't stop 's effect from being activated? How does Salesforce SSO call just-in-time handler methods I am having a hard time digging up some information on this as I believe it is still relatively new. If you implement SSO with Salesforce you have the ability to enable SAML. I have enabled SAML and have also enabled JIT with an automatically created class to support it.  Out of this newly generated class, there are two global methods that I am assuming are called upon SSO, but I do not know which one is called or how.   global User createUser(Id samlSsoProviderId, Id communityId, Id portalId,     String federationIdentifier, Map&lt;String, String&gt; attributes, String assertion) {     User u = new User();     handleJit(true, u, samlSsoProviderId, communityId, portalId,         federationIdentifier, attributes, assertion);     return u; }  global void updateUser(Id userId, Id samlSsoProviderId, Id communityId, Id portalId,     String federationIdentifier, Map&lt;String, String&gt; attributes, String assertion) {     User u = [SELECT Id, FirstName, ContactId FROM User WHERE Id=:userId];     handleJit(false, u, samlSsoProviderId, communityId, portalId,         federationIdentifier, attributes, assertion); }   Does Salesforce have some backend code that interprets the SAML coming over the SSO and then calls the methods appropriately?   The reason I am asking this is because I would like to cancel a user's SSO if they do not match x fields based off of the values coming across in the SAML in the SSO. If I did not want to update a user or create a user, would I be able to add in my own global class that could be called from the SSO?   Let me know if this is unclear / does not make sense.  Thanks Is a memory leak created if a MemoryStream in .NET is not closed? I have the following code:  MemoryStream foo(){     MemoryStream ms = new MemoryStream();     // write stuff to ms     return ms; }  void bar(){     MemoryStream ms2 = foo();     // do stuff with ms2     return; }   Is there any chance that the MemoryStream that I've allocated will somehow fail to be disposed of later?    I've got a peer review insisting that I manually close this, and I can't find the information to tell if he has a valid point or not.