Newest 'binary' Questions - Stack Overflow

Questions tagged [binary]

Binary, the base-2 numeral system, represents numbers using two symbols: 0 and 1. For compiled computer programs, use the "executable" tag instead.

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Is there a repository of scripts to install of language runtimes (python, golang, node) and binaries (docker, imagemagick)?

I am spinning up many different servers for very different use cases, and I need a mix of all common run-times. For example, I want to install Golang 1.8 and Node 8.6 and .NET Core 2.1 on Ubuntu 18.04,...
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0answers
17 views
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1answer
27 views

Problem converting a text file into binary file using perl

I would like to convert some data in binary using Perl. The data needs to be output in 8 bits binary. The original data comes in this format: 137.0000 136.0000 133.0000 136.0000 10.0000 134.0000 0....
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0answers
32 views

Show png in html from binary datas

I need to display an image in php and html, i get the image from a link and it give me this code: ‰PNG IHDRÈå“š’PLTEÙÚÝ>=<DBAsnjÓÔÛÔÕÛ321‹ŠÐÑØ[XU+*)!! ÕÖÞÓÔÜÓÕÜÍÎÕ)((ÈÊÑÆÉÑÑÒÚÅÈÐÔÕÝZMFØÚáËÎÖÖ×...
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3answers
69 views

How to parse through a list of lists and analyze the elements together to see how many times they occur over time?

Let's say I have a machine that sends out 4 bits every second and I want to see the amount of times a certain bit signature is sent over time. I am given an input list of lists that contain a message ...
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0answers
34 views

How Does a computer understand an input not just a string of letters or numbers? [duplicate]

I have been programing with languages that allow me to input values or strings and I get something. But I seek a deeper understanding of something. How does a computer on a software level understand ...
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1answer
39 views

Unable to pass python variable to go binary

In my python script I am trying to pass a variable to a Go binary to perform an operation and retrieve output from Go binary as variable and use it in my python script This is my Go Program which I ...
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1answer
30 views

How to use binary data inside a python file [on hold]

I want to use a binary data of jpg file inside a py file. I can use: with open("example.jpg", "rb") as f: Content = f.read() But in that case I have to use both jpg file and python file. So I ...
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0answers
23 views

How to see and edit the .jpeg or .png files binary code?

i was searching for How to see the .jpeg or .png files binary code in python , but i couldn't find anything i want to see their headers and edit them what should i do ?
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0answers
17 views

Read unsigned long long in PHP from file

I need to read 16x unsigned long long in PHP. How to rewrite those from python in PHP? file.seek(12108) string = format(unpack('>Q', file.read(0x8))[0], '016x') print(string)
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0answers
67 views

Algorithm for maximum sum after XOR

Let there be a set of N numbers. Now we are given two values K and X. Now we pick exactly K different numbers. And the each of that number with the XOR of X and that number. We can perform these ...
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1answer
17 views

Python read binary file of unsigned 16 bit integers

I must read a binary file in Python, and store its content in an array. The information I have on this file is that filename.bin is of size 560x576 (height x width) with 16 b/p, i.e., unsigned 16-bit ...
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1answer
19 views

Why is it subtracting 1 and doing a bitwise inverse is equivalent to doing a bitwise inverse and adding 1?

I am studying two's complement and have come across 2 methods for converting a number's two's complement representation to its decimal representation: Subtract 1 from the initial binary number, then ...
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1answer
37 views

How to fix binary trees coming back with "cannot read 'left' of null' after running test?

My unit tests for my binary tree and binary search tree are coming back as TypeError: Cannot read property 'left' of null. I've looked at similar questions here and have checked for ...
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4answers
84 views

How can I find how many times does 101b show in the number?

I need to find out how many times does the sequence 101b shows in a 16 bit number. But I need to find also the ones that are far away. For example: in the number 01010101 it appears 4 times. Because ...
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1answer
56 views

I don't understand how this code to “write an uint32 inside an array in javascript” works

So basically i have this piece of code that i have found into someone else's code and works fine for the thing i'm trying to do but i will like to understand how it works. I wanna know how it ...
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1answer
13 views

Create a repeating binary pattern of known length

I want to create a repeating binary pattern based on a user-specified length. The number specified would determine the number of 0's and 1's in each cycle. For example, if the user inputs 2, then ...
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1answer
30 views

How to write array of bytes to a binary file in Java

How to write an array of bytes b[i] to a binary file in Java. I need to write those bytes it into a "binary file" to be able to read it later using Hex Editor (AXE). Some readers might be confused ...
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0answers
29 views

Anyone know how to Decode AVC data C++? No libraries

I'm looking to decode avc data, specifically, avc1 codec data held inside an mp4 file. For the purpose of this post, please refrain from suggesting libraries to use, as the task is to do it in C++ ...
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1answer
13 views

Combining fine and course multispeed synchro angles

I'm looking to combine the binary outputs from a course and a fine synchro, sometimes referred to as combining multispeed resolvers. The course synchro is connected x1 so its MSB corresponds to a ...
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1answer
15 views

How to replace efficiently a line in huge half ascii half binary file in Python

i need to change the a line in the ascii header of a huge .ply binary file (point cloud format)[see : http://paulbourke.net/dataformats/ply/ ]. I don't need to change anything else. I'm using python ...
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1answer
54 views

C++: How to convert 32bit data into Signed Integers [duplicate]

In my personal C++ library, I code to handle working on different endian systems (little or big) by working with individual bytes. For example, I calculate a 16bit unsigned integer as follows by using ...
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1answer
38 views

Swift - Convert an Image's Data to Binary Number

Is it possible to take an image and convert its data to Binary? I was able to convert an image's data to a String, but I'm not sure how to now take that String and display its Binary equivalent. ...
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0answers
12 views

How to open a binary file and extract an image?

Can anyone help me with extracting an image from a file which has charset= format? I am not sure what to try here. image/jpeg; charset=binary Would like to get an image out of it. Thank you for ...
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2answers
48 views

How to put numbers to array in while loop in java?

I am trying to add two binary numbers and then get their sum in binary system. I got their sum in decimal and now I am trying to turn it into binary. But there is problem that when I take their sum (...
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1answer
33 views

x86 Linux ELF Loader Troubles

I'm trying to write an ELF executable loader for x86-64 Linux, similar to this, which was implemented on ARM. Chris Rossbach's advanced OS class includes a lab that does basically what I want to do. ...
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1answer
21 views

Reading integer from bin file does modulu(256) on number which are larger than 256

I'm trying to read numbers from a bin file, when it gets to a number which is larger than 256, it does a modulu(256) on that number, for example: the number which i'm trying to read is 258, the number ...
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0answers
38 views

How to convert a decimal fraction number into base 2 fraction number in R?

I need to write a function that converts a decimal fraction number into base 2 fraction number in R. e.g. f(0.125) # 0.001 What I did: I searched for the related functions in R packages: DescTools::...
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1answer
41 views

How to save binary dat file (.dat) to png or jpg format?

I have a binary file format .dat. I want to convert it to png or jpg format, I try to decode it using numpy.loadtxt() to get an array list and then save it to png or jpg format. But when I execute it ...
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2answers
18 views

Why can't I convert these hexadecimals into utf-8?

Hexadecimals: 0xe0 0x3e 0x38 0x2e 0x7e 0x63 0x78 0x66 HEX: e0 => DEC: 224 HEX: 3e => DEC: 62 and so on. If I convert each of these hexadecimals to a decimal and look up the decimal in the "unicode ...
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1answer
19 views

I read image file as binary strange symbols appear

I read an image file in binary in python: open('chall.png, 'rb').read() Result: b'\xe0>8.~cxfein{ ;-0lek\xf7virejneinv\xe7I\x01blo7\x14"1\x07;\x03\x1bE\x19\x1c\x19\x0f\x1a\x05\x07L\x11\x10\x1e\...
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3answers
48 views

Encoding and decoding two integer values both 0-3 into one byte

I'm trying to encode two values a "movement direction" which can be 0,1,2, or 3 and a "looking direction" which can also be 0, 1, 2, or 3 I know it's possible to store this information into one byte ...
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0answers
24 views

Converting a decimal number into a Q3.4 fixed point representation

How can I convert - 4,5_10 into the Q3.4 fixed point representation? My suggestion would be: 4_10 = 100_2 0,5 * 2 = 1,0 0 * 2 = 0,0 Result: 0100 0010_2 Inverting the result to: 1011 1101_2 And ...
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1answer
24 views

Search for pattern in binary array

I am writing a function to search in the binary array(bitmap file) a pattern of bits. The size of the pattern is from 5 to 8 bit long. I have implemented this function as testing for each bit in the ...
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3answers
58 views

Converting a number to IEEE 754

Can someone help me with this question: “Convert the decimal number 10/32 to the 32-bit IEEE 754 floating point and express your answer in hexadecimal. (Reminder: the 32 bits are used as follows: Bit ...
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0answers
19 views

How to get specific fields from MBR file (Linux)

I need to write Java code for parsing .bin file which contains MBR data. I need to get the addresses of the beginning of the logical drive, its name, and the system code. I tried to find some ...
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0answers
21 views

Problem in converting elements of array to binary and Find a float input number after decimal point

First I Apologize for the Previous Question, that was incomplete and I correct my question. I have a dataset contains 4 columns of data, and we need to convert all of them to binary. Each of the ...
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2answers
55 views

What is a variable type bit(32)?

What is a variable of type bit(32) and when can I use it? I also can't seem to replicate this declaration in my own C++ code (in xcode). This is an example of it being used in mp4 file specifications, ...
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0answers
17 views

Trouble with simple Hex to Int Calculation

The specifications for mp4 files outlines its contained matrix. For which, it describes: The matrix provides a transformation matrix for the video: (u,v,w) are restricted here to (0,0,1) with types (...
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0answers
40 views

How to do binary linear algebra on a sparse matrix in Matlab (or any other language)?

I have a sparse binary matrices whose properties I want to analyze over the binary field. The application is to analyze some sparse, binary error-correcting codes. The matrices themselves are too big ...
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1answer
13 views

How to pass binary (16) to a mysql function as an argument

I would like to pass the uuid of version varbinary(16) to a user-defined function in MySQL version 5.7.x - It throws an error 1406 - Data too long for column I have a table with uuid primary key ...
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1answer
69 views

Understanding the binary representation of a float

I am using the following code to print out a "binary representation" of a floating point number: template<class F> void printBinary(F value) { std::cout << std::bitset<...
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1answer
46 views

How to edit binary file in Android?

I want to create an app that can open binary file, read and edit it's content in decimal values, and then save it back to binary file. This file that I want to open have multiple parameters written ...
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4answers
59 views

finding the power of 2 of a number [duplicate]

What is the most optimized way to find the power of 2 of a number. For example : if number is 64 then I want 6 as result. P.S. : I have read many posts about how to check if the number can be ...
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2answers
52 views

5.2 recurring binary how to calculate the binary value

double 5.2 number when i find the binary value of this recurring binary i get as 01000000 00010100 11001100 11001100 11001100 11001100 11001100 11001100 like this when i print the binary value ...
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0answers
10 views

How to host a server that's only a binary file?

I'm experimenting with compiling my Node app to binary using 'nexe' and then hosting it. The app is compiling successfully so far but I am wondering how I can use a host? Is there any host service ...
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0answers
7 views

What is native binary encoding in blockchain?

I understanding binary encoding but could not comprehend what does native binary encoding mean? If I am off-context, I would like to share from where I got this term: A GH page.
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2answers
44 views

Can a Wasm executable be encrypted to prevent reverse engineering?

Can a Wasm executable be encrypted to prevent it being reverse engineered?
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2answers
40 views

How to convert floating number to binary if I have no 32 bits for it

I'm trying to convert a fractional number 1,76 to binary, but the size of the exponent is not 8 bits, but 3 bits, and the size of mantissa is not 23 bits, but 6 bits. That is, there are only 10 bits. ...
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1answer
48 views

How to read images and labels from the infimnist / mnist8m dataset?

Using the the program at this link, https://leon.bottou.org/projects/infimnist, I generated some data. As far as i can tell it is in some sort of binary format: b"\x00\x00\x08\x01\x00\x00'\x10\x07\...