xyzw | Vector Matrix Quaternion Euler Angles SLERPs | Math library

 by   chkt JavaScript Version: 2.8.0 License: No License

kandi X-RAY | xyzw Summary

kandi X-RAY | xyzw Summary

xyzw is a JavaScript library typically used in Utilities, Math applications. xyzw has no bugs, it has no vulnerabilities and it has low support. You can install using 'npm i xyzw' or download it from GitHub, npm.

A generic, fast, comprehensive and dependencyless vector algebra library. All included classes are available at xyzw/source. Es5 versions are available at xyzw/es5.
Support
    Quality
      Security
        License
          Reuse

            kandi-support Support

              xyzw has a low active ecosystem.
              It has 5 star(s) with 2 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              xyzw has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of xyzw is 2.8.0

            kandi-Quality Quality

              xyzw has 0 bugs and 0 code smells.

            kandi-Security Security

              xyzw has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              xyzw code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              xyzw does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              OutlinedDot
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              xyzw releases are not available. You will need to build from source code and install.
              Deployable package is available in npm.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of xyzw
            Get all kandi verified functions for this library.

            xyzw Key Features

            No Key Features are available at this moment for xyzw.

            xyzw Examples and Code Snippets

            No Code Snippets are available at this moment for xyzw.

            Community Discussions

            QUESTION

            DOT Product in pyspark?
            Asked 2022-Apr-15 at 00:31

            I have:

            df1

            ...

            ANSWER

            Answered 2022-Apr-15 at 00:31
            lst=df1.select("multiplier").rdd.flatMap(lambda x: x).collect()#put multiplier into a list
            df3 =(
             df2.withColumn('a1', array('var1',      'var2',     'var3'))#Create an array from df2
             .withColumn('a2', array([F.lit(x) for x in lst]))#Insert array from df1
             .withColumn('a1',expr("transform(a1, (x,i)->a2[i]*x)"))#Compute dot product
             .select('varA','varB','varC','a1', *[F.col('a1')[i].alias(f'var{str(i+1)}') for i in range(3)])#Expand a1 back to original var columns
             .select('*', expr("aggregate(a1,cast(0 as bigint), (x,i) -> x+i)").alias('sumproduct'))#sumproduct
             .drop('a1','a2')
             )
            

            Source https://stackoverflow.com/questions/71876665

            QUESTION

            elasticsearch on python gives name or service not known
            Asked 2022-Jan-29 at 11:01

            I'm working with an elastic API on a url like https://something.xyzw.eg/api/search/advance (not the real url). The API works fine on postman. Also the python code generated by postman works fine and returns results. However when using leasticsearch-dsl package I keep getting:

            Failed to establish a new connection: [Errno -2] Name or service not known)

            Here is my code similar to the first example on documents:

            ...

            ANSWER

            Answered 2022-Jan-29 at 09:46

            Can you try to add port=443 as in one of the examples from the doc you mentioned https://elasticsearch-py.readthedocs.io/en/v7.16.3/#tls-ssl-and-authentication ?

            Source https://stackoverflow.com/questions/70903867

            QUESTION

            C# LDAP user change password failed. Is SSL connection must?
            Asked 2021-Dec-14 at 23:09

            I am writing an ASP.NET Core 5 Web API (platform independent) to change the LDAP user password. I'm using the library Novell.Directory.Ldap.

            This is my code:

            ...

            ANSWER

            Answered 2021-Dec-14 at 23:09

            While AD has a userPassword attribute, it's just a pointer to the unicodePwd attribute, which is the real password attribute. But userPassword doesn't always work, as described in the documentation. For Active Directory, you're better off using unicodePwd directly.

            The documentation for unicodePwd says that you require either SSL or SASL encryption to set the attribute. SASL would usually be done with Kerberos. If you were using DirectoryEntry, that's easily done by specifying AuthenticationTypes.Sealing. With Novell.Directory.Ldap, I don't know if that's possible, and this open issue suggests that it isn't (yet).

            Unless you're willing to switch to using Sytem.DirectoryServices (which, in .NET Core, would lock you into running your app on Windows only), then I think you are stuck requiring SSL.

            The unicodePwd attribute also requires a very specific format. The documentation says:

            the DC requires that the password value be specified in a UTF-16 encoded Unicode string containing the password surrounded by quotation marks, which has been BER-encoded as an octet string per the Object(Replica-Link) syntax.

            In C#, that's easily done like this:

            Source https://stackoverflow.com/questions/70346442

            QUESTION

            Building a link structure recursively in Prolog
            Asked 2021-Dec-01 at 20:17

            I'm trying to build the following structure recursively using Prolog

            ...

            ANSWER

            Answered 2021-Dec-01 at 20:17

            You can use the accumulator Prolog programming pattern
            to solve the problem. I am now assuming that you have the
            input xyzw in the form of a list [x,y,z,w]. The accumulator

            is the second argument of the predicate links/3:

            Source https://stackoverflow.com/questions/70188838

            QUESTION

            std::array and std::tuple in memory order
            Asked 2021-Oct-29 at 10:54

            I'm testing a small code fragment and I'm surprised the same representation of 4 bytes as put into std::array and std::tuple yield different in-memory layouts

            ...

            ANSWER

            Answered 2021-Oct-29 at 10:32

            std::array has a layout specified by the standard, but std::tuple does not, and can be anything the implementation wants.

            So it's expected that they may differ, but of course they may also happen to choose the same layout, on some compilers/versions/platforms - there's just no guarantee.

            In practice one of the easiest ways to implement std::tuple is recursively, as it was originally done in the Loki library. This will lay the fields out in reverse order (the most-base class, whose subobject comes first, is the leaf for the last member of the typelist). That's not the only possible implementation though, and I have observed the field order differing between compilers/standard library implementations.

            NB. as mentioned in a comment, your current diagnostic has UB - however, you can hexdump the 4 bytes at reinterpret_cast(&i.z) safely and get an equivalent result.

            Source https://stackoverflow.com/questions/69767320

            QUESTION

            Why do torch.add and torch.einsum return different results?
            Asked 2021-Oct-08 at 18:27
            t=m+n
            x=torch.einsum('xyzw,xyzw->xyzw',m,n)
            
            ...

            ANSWER

            Answered 2021-Oct-08 at 18:27

            einsum is actually a product of its inputs. It's only a sum over the indexes that do not occur in the output.

            So,

            Source https://stackoverflow.com/questions/69499333

            QUESTION

            unnoticeable changes leads to different tokens
            Asked 2021-May-29 at 15:06

            My question relates to the minting process to create an NTF.

            I might be wrong but the tokenization function can be compared to an hashing function which takes as input the media and outputs the token.

            Yeah this actually already is a question, cause otherwise the main question maybe does not makes sense.

            Assuming the comparison to an hash function makes sense and forgetting about collisions let's assume the following scenario: I create a digital artwork and the related NFT. It's published and sells somehow (hopefully :D).

            Imagine Mr.XYZW is a well known digital artist who gets huge revenues from NFT, he sees my artwork, somehow he likes it but also thinks the artwork would look better if for example the colors simply get inverted. Here I'm just mentioning one of all the possible changes he could do, the point is that easily those changes could not even be noticeable to the human eye, but not to the tokenizer, which would in the end clearly create a different token.

            Now the problem should be clear.

            If what I said makes sense, how is it usually tackled? in case it doesn’t, please help me to understand.

            Thank you

            ...

            ANSWER

            Answered 2021-May-29 at 15:06

            tokenization function can be compared to an hashing function which takes as input the media and outputs the token

            This is an incorrect assumption.

            You can compare an NFT collection (at least per the most widely used standard - ERC-721) to a key-value dictionary, where the key is an integer ID, and the value is a URL. The standard defines that the URL should lead to a JSON containing the token name, description, and image URL.

            But there's no hashing function that would calculate the token parameters based on the image.

            Each collection (holding several NFTs) is a smart contract deployed on a different address (e.g. 0x12345). Also, each NFT within its collection has a unique ID (e.g. 1).

            Combination of the collection address and the token ID can be used as a unique identificator of each NFT (e.g. 0x12345 / 1).

            It's technically possible for multiple different NFTs (no matter whether they're in the same or different collections) to lead to very similar images or even the same image. But the combination of collection address and token ID is always unique.

            Source https://stackoverflow.com/questions/67751557

            QUESTION

            Reset quaternion values from IMU to X:0,Y:0,Z:0,W:1
            Asked 2020-Dec-17 at 11:00

            I would like to reset/remove offset quaternion data from real-time IMU sensor recordings. E.g. I get [-0.754, -0.0256, 0.0321, 0.324] (XYZW) when I start recordings. I would like to reset this to be [0, 0, 0, 1] when I start recording, as I am using it to rotate a 3D object which initial quaternion values are [X: 0, Y: 0, Z: 0, W: 1].

            I tried subtracting all quaternion data from the first as so:

            ...

            ANSWER

            Answered 2020-Dec-17 at 09:30

            Nice description of usage of equation rotation about axis set as quaterion can be found here:
            http://wiki.alioth.net/index.php/Quaternion

            quote

            Source https://stackoverflow.com/questions/65337617

            QUESTION

            Don't fully understand the output of very small C program using void*/char* to refer to and int + pointer arithmetic
            Asked 2020-Sep-02 at 09:35

            I am having trouble fully understanding why the output of the following code snippet on both onlinegdb.com and visual studio is 2 when I expected a junk/crashed value

            I know what little endian and big endian are. My comp clearly should be little endian since it is a 32 bit intel core duo.

            I have 512 which in little endian is:

            ...

            ANSWER

            Answered 2020-Sep-01 at 20:44

            You may want to make a copy of the byte before printing it:

            Source https://stackoverflow.com/questions/63695062

            QUESTION

            arangodb self join query result
            Asked 2020-Aug-18 at 08:37

            Im trying to self join,merge parent field and get results as separate documents data:

            ...

            ANSWER

            Answered 2020-Aug-18 at 08:37

            here you can find examples on how to join collections (and self joins further down the page).

            In your particular case the query could look something like this:

            Source https://stackoverflow.com/questions/63246309

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install xyzw

            You can install using 'npm i xyzw' or download it from GitHub, npm.

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
            Find more information at:

            Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items

            Find more libraries
            Install
          • npm

            npm i xyzw

          • CLONE
          • HTTPS

            https://github.com/chkt/xyzw.git

          • CLI

            gh repo clone chkt/xyzw

          • sshUrl

            git@github.com:chkt/xyzw.git

          • Stay Updated

            Subscribe to our newsletter for trending solutions and developer bootcamps

            Agree to Sign up and Terms & Conditions

            Share this Page

            share link