narray | Multidimensional Arrays for the Go Language | Math library

 by   akualab Go Version: Current License: BSD-3-Clause

kandi X-RAY | narray Summary

kandi X-RAY | narray Summary

narray is a Go library typically used in Utilities, Math applications. narray has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Package narray provides functions to opearate on multidimensional floating-point arrays. Packages for types float32 and float64 are automatically generated. These options makes it possible to find the trade offs between precision and computation speed. The elementwise operations are also generated automatically by scraping the standard math package. Various functions are optimized using assembly code for amd64 acrhitecture.
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            kandi-support Support

              narray has a low active ecosystem.
              It has 28 star(s) with 1 fork(s). There are 2 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 1 open issues and 9 have been closed. On average issues are closed in 193 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of narray is current.

            kandi-Quality Quality

              narray has no bugs reported.

            kandi-Security Security

              narray has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              narray is licensed under the BSD-3-Clause License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              narray releases are not available. You will need to build from source code and install.
              Installation instructions are not available. Examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed narray and discovered the below as its top functions. This is intended to give you an instant insight into narray implemented functionality, and help decide if they suit your requirements.
            • genMath generates math for the given type .
            • querySubset returns the subset of s .
            • genFiles is the same as genFiles .
            • names returns the names of Go files .
            • goFiles returns a list of go files .
            • NewArray creates a new NArray .
            • contesianProduct returns the product of s .
            • New returns a new NArray .
            • Add multiple arrays .
            • MinArray computes the minimum of two arrays .
            Get all kandi verified functions for this library.

            narray Key Features

            No Key Features are available at this moment for narray.

            narray Examples and Code Snippets

            No Code Snippets are available at this moment for narray.

            Community Discussions

            QUESTION

            Aborted(core dumped) in dynamic string with realloc
            Asked 2021-May-17 at 18:25
            #include 
            #include 
            #include 
            int Init_Arr(int N,int X,int *arr);
            
            void Add_elem(int N,int *arr);
            
            void Del_elem(int N,int *arr);
            
            void Reinit_arr(int N,int *arr);
            
            int main(){
              int N,X,*arr;
              printf("How big array do you want?:");
              scanf("%d",&N);
              arr=(int *)malloc(sizeof(N));
              printf("\nHow much elements do you want in your array?:");
              scanf("%d",&X);
              Init_Arr(N,X,arr);
              Add_elem(N,arr);
              Del_elem(N,arr);
              Reinit_arr(N,arr);
              return 0;
            }
            int Init_Arr(int N,int X,int *arr){
              for (int i=0;i
            ...

            ANSWER

            Answered 2021-May-17 at 18:25

            QUESTION

            why std::vector::push_back much slower than a manual implementation?
            Asked 2021-May-11 at 13:01

            I wanted to write a dynamic array for trivial type (then I can use memcpy or sth to optimize), but when I compare its efficiency to std::vector, I found its push_back function is twice as efficient as astd::vector.

            That's so strange, I read source code of MSVC STL to find why, but in vain.

            my code:

            ...

            ANSWER

            Answered 2021-May-11 at 10:35

            Your version is only valid for trivially copyable types.

            Because reallocation may involve bytewise copying (regardless of whether it's to expand or to contract), only the objects of TriviallyCopyable types are safe to access in the preserved part of the memory block after a call to realloc.

            The ordinary std::vector has a very lax requirement in comparions, merely Destructible in general, and one of CopyInsertable or MoveInsertable for push_back.

            Source https://stackoverflow.com/questions/67484805

            QUESTION

            Find the first comma in the array and the total number of this symbol
            Asked 2021-Apr-30 at 08:17

            I'm a student at tech unuversity. I have my hometask on JS. Here it is: given a char array. By pressing the "Result" button, find the first comma in the array and the total number of these characters, if it is in the array, if not, display the corresponding message. I made my code, but the teacher said that it`s wrong, because message of number of comma must displayed one time, so as message that there is no comma. Please, help me.

            ...

            ANSWER

            Answered 2021-Apr-29 at 11:01

            THE PROBLEM is in the var total = 0 ;

            Set it as var total;

            Source https://stackoverflow.com/questions/67315945

            QUESTION

            Send Email with Firebase Functions and Amazon SES
            Asked 2021-Apr-21 at 09:12

            I just want to send an email to test the connection via Firebase Functions and AWS Simple Email Service (SES) from a verified domain and verified email addresses (still in sandbox). Therefore I installed node-ses and created the following code. I use vuejs for the webapp and nodejs.

            ...

            ANSWER

            Answered 2021-Apr-21 at 09:12

            I found a solution. I still do not know how it works with node-ses but I know how it works with nodemailer.

            1. Install nodemailer (npm i nodemailer)
            2. Install nodemailer-ses-transport
            3. Change the region to one that suits your settings
            4. Input the following in your index.js of Firebase Functions (put your AWS credentials)

            --- SOURCE CODE BELOW ---

            Source https://stackoverflow.com/questions/66746665

            QUESTION

            Twincat 3: Giving names to array bits
            Asked 2021-Apr-13 at 17:57

            Beginner in the whole PLC stuff, so corrections are welcome.

            I am trying to tidy up my project and current situation is thus: I receive 16 byte arrays from modbus. These act as buttons, lights, conveyors what have you in Factory IO.

            ...

            ANSWER

            Answered 2021-Apr-12 at 14:09

            You can try to use a UNION. It is basically an "overlay" variable you can place over another variable.

            Source https://stackoverflow.com/questions/67057802

            QUESTION

            Loop and array problem with stopping at one element
            Asked 2021-Apr-05 at 13:24

            Scroll for more details

            My code :

            ...

            ANSWER

            Answered 2021-Mar-30 at 13:58

            QUESTION

            Have I found a bug in zparseopts or am I doing this wrong
            Asked 2021-Apr-03 at 01:11

            I ended up on a mission to document/solve zparseopts this afternoon. I think I found a bug with the -K option - or as I call it -KillYourself.

            I think -K is not handling a flag option correctly. The output skews previously existing key/value pairs one-half pair to the left as shown below.

            Can a BASH / ZSH guru make sure that I am doing this correctly?

            Expected Behavior with -K and additional options and flags:

            ...

            ANSWER

            Answered 2021-Apr-03 at 01:11

            The issue is the printout of the values in the associative array. Try replacing the paargs for loop with this:

            Source https://stackoverflow.com/questions/66925637

            QUESTION

            how does the std::sort() function in C++ work?
            Asked 2021-Mar-28 at 15:44

            I'm using Programming Principles and Practice Using C++ as my guide and reference to learn programming and c++. In chapter 4.6.4 the book showed this snippet of code.

            ...

            ANSWER

            Answered 2021-Mar-28 at 15:44

            The first example is working in C++20, if sort is from the ranges namespace. Is it mentioned in the book/tutorial your are reading?

            sort(arr, arr[5]); in your terms, arr[5] is not "where", it's an array element, i.e. "what". "Where" is the address &arr[5] or &arr[n]. You could use std::begin(arr) and std::end(arr) instead of arr and &arr[n].

            How std::sort work is very well explained with examples on std::sort.

            Source https://stackoverflow.com/questions/66843045

            QUESTION

            Creating dummy variables
            Asked 2021-Feb-24 at 16:52

            I'm trying to create dummy variables for a categorical variable in my pandas dataframe. When I try this with scikit-learn's OneHotEncoder, I get an error.

            Here's a sample of my database :

            ...

            ANSWER

            Answered 2021-Feb-24 at 14:57

            The error message tells you most of how to fix the error: reshape your data. The issue is that it's expecting a numpy array. Instead, you're giving it a pandas.Series object—which doesn't support reshape.

            Source https://stackoverflow.com/questions/66351907

            QUESTION

            How is this Java project using the language reserved words as identifiers?
            Asked 2021-Feb-24 at 01:14

            I have de-compiled a Java project using JD-GUI, and was surprised when I saw that all identifiers are using Java reserved keywords such as int do throw extends etc..

            Here is a snippet of the project:

            ...

            ANSWER

            Answered 2021-Feb-24 at 01:00

            While reserved words may not occur in Java source code, they are permitted in compiled Java code. Some code obfuscation tools can make use of this to make decompiling harder. For instance, ProGuard provides the following option:

            -obfuscationdictionary filename

            Specifies a text file from which all valid words are used as obfuscated field and method names. By default, short names like 'a', 'b', etc. are used as obfuscated names. With an obfuscation dictionary, you can specify a list of reserved key words, or identifiers with foreign characters, for instance. White space, punctuation characters, duplicate words, and comments after a# sign are ignored. Note that an obfuscation dictionary hardly improves the obfuscation. Decent compilers can automatically replace them, and the effect can fairly simply be undone by obfuscating again with simpler names. The most useful application is specifying strings that are typically already present in class files (such as 'Code'), thus reducing the class file sizes just a little bit more. Only applicable when obfuscating.

            So if you feed this a list with Java identifiers (such as this one) you end up with a class file that causes syntax errors if decompiled. Of course, you can simply rename the variables to fix these compilation errors (for instance by using ProGuard yourself before decompiling), so this is only a minor inconvenience.

            Source https://stackoverflow.com/questions/66342959

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

            Vulnerabilities

            No vulnerabilities reported

            Install narray

            You can download it from GitHub.

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