How can I draw this picture using Tikz?
How can I create a cross product like the one in the picture.    \documentclass{article} \usepackage{tikz} \begin{document}  \begin{tikzpicture}[line width=.7pt] \draw [-&gt;] (-.2,0)node[below]{$o$}--(4.5,0)node[below]{$x$}; \draw [-&gt;] (0,-.2)--(0,2)node[left]{$y$};  \end{tikzpicture}  \end{document}
The PHB states: "A familiar can’t attack, but it can take other actions as normal."  What can a familiar do? Can it use a potion of healing on a character? Can it drop caltrops? Search window not opening in ArcMap? After turning census block data into a raster, how do I redistribute the density to reflect land cover types I plan on rasterizing (terminology?) census block data relating to density to a regular 30 m by 30 m grid for use with NLCD data.  I then hope to distribute the density of the original census block among each result set of grid cells within the original polygon according to the land cover type dictated by the NLCD dataset.  For example, let's imagine a string of city blocks with a park, all found within one census block.  If within this census block the average density is 1000 people/km^2, we ultimately would want the resulting grid cell containing the park to have a lower population density than the grid cells containing the surrounding apartments.  This information may be captured by the NLCD dataset, with the park being classified as '21' (open but developed land) versus 24 for apartment buildings which could be classified as '24' (high density development).  Is there a method, or set of methods, within ArcMap that would allow me to:   Redistribute the density based on the NLCD value Perform this redistribution only within the original census block polygon   I don't know if this is possible, but I figured I would ask.  Edit  Here's what I have been trying:  I converted the census block data to a raster, snapping it to the NLCD land cover data and ensuring the output grid cells were the same size.  Each cell contains the same info as the original census block (housing umbers, population, etc). I have been trying to figure out a way to edit the new grid so that if the NLCD grid cell contains a land cover type that doesn't support a business or housing (park, forest, farm, etc.) that it's housing and population values area set to 0.  My next move was going to be figuring out how to subtract the non-residential/non-business grid cells area from the area of the original census block, and force a recalculation of the density.  Converted the altered census block layer to grid cells again, with each having the new density value, and once again set the cells' housing, population, and density values that don't support a business or housing (park, forest, farm, etc.) to 0.  Kind of circular, and I'm not sure of all the steps (raster calculator for editing individual grid cells based on another raster's grid cell value?), but it seems to logically work out if I can get the parts to work.  On the other hand, @dof1985's answer seems to simplify the first part of my workflow (by directing me to the correct toolset), but I will still have to nullify the grid cells where parks, etc., do exits after the density has been recalculated for the census data. Does existence of $\gcd$ implies PID? guess the color of the next card There are 26 red cards and 26 black cards on the table which are randomly shuffled and are facing down onto the table. The host turns up the cards one at a time. You can stop the game any time (even at the beginning of the game). Once you stops the game, the next card is turned up: if it is red, you get $1; otherwise you pay the host one dollar. What is the payoff of this game? Why put a resistor in series with signal line? A lot of times in circuits I see a resistor placed in series in a signal line and sometimes even in series with an MCU's VDD line. Is the intention of this to smooth out noise in the line? How is this different from using a small cap, like a .1µF to do the same thing? I'm trying to find a story for my father, from the 70s or earlier  Earth is at war with aliens (possibly Martians) and was unable to effectively fight back as the aliens had planetary (or at least city-protecting) force fields through which no bombardment was possible.  Earth eventually wins through invention of a device that allows them to teleport weapons (nukes?) under the force fields.  originally believed to be one of Harry Harrison's 'One step from earth' shorts, but this is not the case.  Thanks in advance for any help here! Can I connect to a specific access point by BSSID? Is there any way to get Mac OS X to connect to a specific access point by BSSID? I have a network with the same SSID for multiple access points, and I would sometimes like to specify which specific access point to connect to. Is this something Mac OS X can do natively, or is there a third party tool that can do this? Freestyle Background color not white? I'm following  and I've set my compositor up in the exact same way as he did, except my background is like a slightly light grey and I don't know why.  In his video's he's getting a bright white as his background and I can't see where I'm going wrong.  Here's the render:   Here's the compositor window:    file.  Please help! I really want to know why it's not happening. Why don't my female dwellers give birth to children? I am playing Fallout Shelter on my IPad. There were some women who have already gave birth, but two female dwellers are carrying their babies for about 18(!) hours. I know that this process takes three hours, so this is not normal. What do I do? How can I duplicate Apple's tiny USB power adapter? I'm designing a project that controls 110VAC (plug in, socket out), and also has a microprocessor inside.  I'd really like this project to not need a wall wart to get it's 5V, so I want to include a small DC power supply inside.    Apple's USB power adapter looks like a great small design that I can fit inside my case.  I'm guessing this is a switching power supply but I can't find any teardowns or schematics anywhere.  Does anyone know how this thing works?  I know I could make my own 110V->5VDC supply from a bridge rectifier and some caps, but I'd like to also be super safe.  What's in the Apple brick? What expression would be the opposite of "Deal Breaker"? I understand that "Deal breaker" is an expression used for a feature/characteristic that would make one not go for a deal (or terminate a contract), even if the deal's other features are great.  What expression would be the opposite of "Deal Breaker"? I'm looking for an existing expression that would describe a feature that would make one go for the deal, even if there are other not so great characteristics.  The expression could fill the sentence below:     I know this phone carrier has higher rates and everything, but if   they are offering free iPhone to us if we switch, that would be a &lt;expression   here&gt;! We would totally go for it. What is currently the best way to get a favicon to display in all browsers that support Favicons? Thick annulus (ring) in 3D Quick question: what is the compiler flag to allow g++ to spawn multiple instances of itself in order to compile large projects quicker (for example 4 source files at a time for a multi-core CPU)? Mutual set of representatives for left and right cosets: what about infinite groups? Let $G$ be a group and $H$ a subgroup of $G$. If $G$ is finite, then according to Philip Hall's "marriage theorem" there is a left transversal $T$ of $H$ in $G$ (that is, $T$ contains precisely one element from each left coset of $H$) such that $T$ is also a right transversal of $H$.   Does this theorem generalize to infinite groups? The original theorem treats only the case where $|H| &lt; \infty$ and $[G:H] &lt; \infty$.  What can we say when $|H| = \infty$ and $[G:H] = \infty$? What about $|H| &lt; \infty$ and $[G:H] = \infty$? Also $|H| = \infty$ and $[G:H] &lt; \infty$? Add warning when changing display name The policy on changing one's display name :  only one display name change is allowed every 30 days  However, there is no warning whatsoever when actually changing one's display name.  Thus, it came as quite a bit of a shock to me when I found out today that I might be stuck as &quot;Unicorns are Yummy&quot; on Stack Overflow for the next freakin' month. I would like to recommend that a warning be added to the &quot;Edit Profile&quot; page to warn people. Or, at least make the policy concerning display name changes more obvious. Workaround I was able to change my display name back (phew!) by copying my profile from Meta Stack Overflow. I still think a warning should be implemented, though. I just installed Ubuntu 12.10 on an ASUS X401U, and after installation there is no list of wireless connections. I didn't have that problem with an installation on HP. What I can do to enable Wifi?  07:00.0 Network controller [0280]: Ralink corp. Device [1814:3290] When Free shipping is available hide other shipping methods except Local pickup in WooCommerce I currently have WooCommerce setup to allow free shipping on orders over a certain amount. However, I also have local pickup available and would like to allow BOTH if over a certain amount. I have the following code to remove the other rates, however it also doesn't keep the local pickup option. function fd_shipping_rates( $rates, $package ) {           $all_free_rates = array();          foreach ( $rates as $rate_id =&gt; $rate ) {         if ( 'free_shipping' === $rate-&gt;method_id ) {              $all_free_rates[ $rate_id ] = $rate;             break;         }     }          if ( empty( $all_free_rates )) {         return $rates;     } else {         return $all_free_rates;     }  } add_filter( 'woocommerce_package_rates', 'fd_shipping_rates', 10, 2 );  Any help regarding this is much appreciated! I am looking for a code solution only as I am looking to minimise unneeded plugins. EDIT: I recently found this article on  website regarding this exact issue. Short story identification: society partitioned off by high wall