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I'm studying Idris from its author's Type-Driven Development with Idris, but I'm getting really confused by the topic of dependent-types, and I'm picking the length of a Vec as one example of what confuses me. I think the book, early enough, tries to convey the idea that if you describe properties of a program in types, that's good because it helps the compiler help you write correct programs (my emphasis in bold): We put the type first, treating it as a plan for a program, and use the compiler and type checker

I am installing magento2 [Magento Open Source] edition. I have installed and enabled all require extension for magento installation. Installed elastic service enabled all required extension as well. still I am getting error while installing Magento. please find error below: Please suggest me some solution. Thank you in advance.

I got a similar anim montage issue as this link. Fire anim plays correctly, but the FireMontage doesn't play as fire anim. Could you please help me fix it?

I am building a photo printing UI in React where users select a physical print size (e.g., 6x4, 5x7) and need an overlay to represent the "Paper." I need to implement a "Shrink to Fit" feature. Unlike a standard crop (which fills the area), "Shrink to Fit" must ensure the entire image is visible inside the print area without any cropping. If the aspect ratios don't match, it should result in "white borders" (the overlay being larger than the image in one dimension). The Setup: I have an <img> tag rendered on screen. I can get its dimensions using getBoundingClientRect() (let's call this imgBox). I have a selected print size (e.g., widthIn: 6, heightIn: 4). I need to draw a <div> (the overlay) centered on the image. The Requireme

here i got : Elasticsearch stores most of the searchable / document-like data (text fields, city, etc.) Neo4j stores relationships and some entity attributes (e.g., gender, graph connections) Each entity exists in both systems and is linked by a shared eid. Currently, I query Elasticsearch using apoc.es.getRaw() from Neo4j to retrieve matching documents, then match the returned eids back to Neo4j nodes for further filtering and graph traversal. The problem: Some filters exist only in Neo4j (e.g., gender), while others exist only in Elasticsearch (e.g., city). For example, when searching for “males living in Shiraz”, Elasticsearch may return thousands of documents for city = Shiraz, but only a small subset match gender = male in Neo4j. This result

I have implemented a custom BuildTimestampProvider in my OSGi-based application to update the .qualifier with the current timestamp only for bundles that have actually changed, instead of updating all bundles. The custom timestamp provider is implemented as follows: @Component(role = BuildTimestampProvider.class, hint = "file") public class FileBuildTimstampProvider implementes BuildTimestampProvider { //Ovverride this method to customized behaviour as per my requirement public Date getTimestamp(MavenSession session, MavenProject project, MojoExecution execution){ } } It is used in the pom.xml as shown below: <plugin> <groupId>org.eclipse.tycho</groupId> <artifactId>tycho-packaging-plugin</artifactId> <version>2.7.5</version> <depedencies> <dependecy> <groupId>com.team.osapp</groupId> <artifactId>buildtimstam

There are many Stack Overflow questions about fast logarithm calculation, but all of them presuppose that you want to calculate a logarithm using a specific base. Two, e, and 10 are popular bases. I want to calculate the logarithms of many 32-bit unsigned integers, and quickly. The answers will also be integers. Ideally, I would like to achieve this with fast, simple, mostly bitwise operations. The exact value of the base is unimportant, but it will be smaller than 2 and only slightly greater than 1. I care that the values have all been log-transformed consistently, and that I achieve some granularity. Of course, I expect to lose some bits in any log result. But to take one example, calculating a 16-bit integer logarithm from a 32-bit integer would be good for my use case. I can't brute-force the result with a lookup table. A 16-bit lookup table would be too large. Calculating the integer part for the log(2) of a 32-bit integer is easy. We only ha

I’m developing a new MacOS project in SwiftUI, and in one scene I’m trying to have a parent view obtain the relative frame of a child view. However, I’ve found that there are many seemingly random factors that can prevent the parent view’s onPreferenceChange from being triggered. One thing I find particularly surprising is that the ordering of a Button and another child view can actually affect the result. The code below is a fully working example: Case one: Button("TestingButton") above Text("TestingChild") struct ContentView: View { var body: some View { VStack { Button("TestingButton") {} Text("TestingChild") .overlay { GeometryReader { geo in Color.clear .prefe

I'm solving LeetCode 22 - Generate Parentheses and came up with an iterative approach that builds combinations by inserting () at every ( position, plus prepending/appending. Despite my approach generating duplicate candidates (handled by a set), it performs fewer inner-loop iterations than the divide-and-conquer solution from LeetCode's editorial. My iterative solution: python def generateParenthesis(self, n: int) -> List[str]: combinations = {"()"} for _ in range(n - 1): new_combinations = set() for pattern in combinations: new_combinations.add("()" + pattern) new_combinations.add(pattern + "()") for idx, char in enumerate(pattern): if char == "(": new_combinations.add(pattern[:idx +

I'm attempting to display a form for a tennis event (location, time/date) and each of its participants (name, status). I was recommended to use an inlineformset, which I assume would allow editing of all those fields with one submit button. What I'm getting: the participants fields are all editable fields, but the event fields are not (they're just displayed): Am I correct in assuming that an inlineformset should allow this approach? Models: class Event(models.Model): date_time = models.DateTimeField(default=datetime.now(), auto_now=False, auto_now_add=False, null=False, blank=False) # location = models.CharField(max_length=50, null=False, blank=False, help_text="Where the event will happen, e.g. location and court") roster = models.ForeignKey(Roster, related_name='events', on_delete=models.CASCADE, default=None, null=True, help_text="The event's roster") comment = models.CharField(max_length=400, null=True, blank=T