Questions tagged [number-systems]

Questions about representing numbers in alternative representations, such as hexadecimal or Mayan

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2
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0answers
23 views

Simple Pretty-Bytes Size (SI System)

This is a simple and short "Pretty Bytes" javascript function using the SI Decimal System for quantifying bytes. The code does not use complex maths such as ...
7
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4answers
367 views

Simple Number to Words using a Single Loop String Triplets in JavaScript

I have extensively reviewed 2 old articles on the subject: https://stackoverflow.com/questions/14766951/convert-digits-into-words-with-javascript and https://stackoverflow.com/questions/5529934/...
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1answer
68 views

JavaScript — Convert decimal to another base

The Source code is maintained on GitHub and may be cloned via the following commands. A Live demo is hosted online, thanks to GitHub Pages. ...
2
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0answers
65 views

Large Number Scales Names Generator

This JavaScript code generates the full name of the numeral scales for large numbers under the "Short Scale Numeral System" using the Conway-Guy system for forming number prefixes. Some very ...
3
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1answer
1k views

Implementing my own Integer.toBinaryString(int n) method

Our senior developer gave us (trainees/jr. developers) a small exercise and that is to make our own Integer.toBinaryString(int n) implementation. This is the answer ...
4
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2answers
101 views

Program to convert number from any base to decimal

I have made a script to convert number from any base to decimal. I am trying to optimize the code because I think it is bloated and can be improved but if I change anything it affects error handling ...
4
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2answers
71 views

Convert Exponential (e-Notation) Numbers to Decimals

I have the following short function code that converts Exponential (e-Notation) Numbers to Decimals, allowing the output of large number of decimal places. I needed to cover all the e-notation ...
2
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1answer
1k views

Python binary to decimal converter (without using built-ins)

Any ideas how I could improve this? I already know that there is no checking for anything other than a 1, so you can enter a 2 ...
8
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2answers
11k views

Convert Persian and Arabic digits to English

I use the following utility method to convert Persian and Arabic digits to English using regex: ...
5
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1answer
57 views

“Bigint” decimal to two's complement binary list of bytes in Python

I'm toying with the idea of writing a "bigint" library in 6502 assembler that would handle variable-length integers up to 255 bytes long. Since this would be unit tested using pytest, and to help wrap ...
4
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1answer
384 views

Converting a binary string to hexadecimal using Rust

Once again, I am reinventing the wheel here to understand the fundamentals of rust. In a previous question I requested feedback on my function that performed a hexadecimal to binary conversion. In ...
5
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1answer
181 views

Converting a hexadecimal string to a binary string using Rust pattern matching lookup

I am getting started in Rust, and as a part of my first exercise, I decided to write a small program that converts a hexadecimal string to a binary string using a pattern matched lookup. I would ...
10
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3answers
969 views

Karazuba Algorithm with arbitrary bases

I'm working on an implementation of the Karazuba Algorithm. I created a class BN which represents a number in an arbitrary base (and supports elementary operations)...
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1answer
182 views

Python Decimal to Binary converter (without using bin() or output formatting)

There is no input validation for this, but that aside, I would appreciate it if anyone could help me improve the logic of this script. ...
1
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1answer
230 views

Hex string to Base64 in Haskell

This is my take on the first challenge on the cryptopals crypto challenges list. I think that i made it quite simple but i feel like it is possible to optimize it further. Any suggestion? The code: ...
5
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4answers
125 views

Java code to convert between hex & binary strings

I have two methods in my code which are using the majority of the CPU time that convert between binary and hex strings and the reverse. I use a static lookup map to convert the individual characters ...
3
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1answer
63 views

Interactive command-line binary to decimal converter

Is this the most efficient way to write this piece of code? Is there a better way of handling errors inside of a while/for loop, instead of calling back to the original function? I have tried using <...
4
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1answer
286 views

Converting long values in Java to unsigned strings

This one is a research attempt to find out how to convert long values as unsigned long integers to Strings. It is much slower ...
3
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1answer
112 views

Convert characters to octal, binary, and integer

I have implemented a sample program that converts vector of characters to its integer representation depending on the bit size specified. I was hoping to get some input on how to simplify the sequence....
2
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1answer
84 views

256-bit ASCII Color Encoded Hex Dump in C

I made this hex dump after being dissatisfied with the free hexdumps out there. The biggest dissatisfaction is that the encodings for the char bytes were not color encoded, just like the hexyl hexdump ...
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2answers
88 views

Convert a number from one base to another

I wrote a function to convert an unsigned integer number given by a string from one base to another. Can you please give me any tips to improve it? ...
6
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3answers
99 views

Program that outputs binary values of input

I am looking to simplify my main() function. The nested if statements contain four lines of the same code, and I'm unsure of how to refactor and simplify it. I was attempting to use booleans, which ...
4
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1answer
746 views

Python binary calculator

My task was to build a calculator in Python supporting binary addition etc. To begin I define a couple of custom exceptions : ...
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2answers
78 views

Convert number to X base

As an educational exercise, I would like to make this code more efficient, with fewer lines, without using other standard functions. The goal here is to convert a number to X base and display it, (...
1
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1answer
49 views

Simple Binary to Decimal Converter

I just recently began going over number systems again, granted I didn't pay very much attention to it the first time for lack of understanding its importance (I've only been coding for a year and some ...
4
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1answer
2k views

Decimal to Binary in Rust

As a beginner in Rust i am trying to practice Rust with some little programs so here is my implementation of Decimal to Binary. ...
8
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5answers
395 views

Convert decimal to binary

This program converts a decimal number to a binary number. This is one of my first C programs and I am wondering if I have used the elements of this language properly. Suggestions for improvement are ...
5
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1answer
1k views

Base conversion: decode and encode base to integer

I encountered this question as I am preparing for my code interview. I was implementing a base function that can decode and encode any bases from base 2 to base 36. I think my ...
5
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3answers
731 views

Hex dump of a list of 16-bit numbers

This is some code which prints a hexdump of a list of 16 bit numbers, at 16 bytes distance for each, after the "print data" comment: ...
6
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1answer
875 views

C binary number converter (Hex and Decimals)

I'm still new to C programming, but I'm playing around with it to ensure I progress. I just made the following converter that takes 8 numbers (0 and 1) as binary code then converts the binary value to ...
3
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3answers
272 views

Calculate with numbers from different number systems

This program calculates with numbers from different number systems and outputs the result in the desired number system. You call it like that: ...
17
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1answer
22k views

Excel column string to row number and vice versa

Excel column letters to actual numbers, if you recall, Excel names its columns with letters from A to Z, and then the sequence goes AA, AB, AC... AZ, BA, BB, etc. You have to write a function that ...
1
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1answer
301 views

Converting decimal to octal

This is a simple program converting user input decimal numbers into octal ones. ...
0
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1answer
28 views
4
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1answer
172 views

Convert boolean list to list of base10 integers

Context: I'm coding up a simple genetic optimization algorithm from first principles, and have decided to use boolean/binary strings as genes so that I can flip bits on or off as a form of mutation. ...
5
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2answers
203 views

String to binary converter

I did research about binary counting, and wanted to make an application in Java that converts a string to binary code: ...
6
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2answers
206 views

(Almost) arbitrary base ints with decorated methods

After reading this question about returning the "next" string in some alphabet (the digits, followed by upper and lowercase ASCII letters) using Java, I thought, well that's just counting, so why not ...
4
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2answers
9k views

JavaScript function to convert decimal number to binary

I was recently asked this in an interview for a front-end position and I came up with something like the code below, which seems to work but is clunky. (...
0
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1answer
295 views

Binary to decimal in python

binaryToDecimal = lambda binary: sum([[int(2**index) for index in range(len(binary))][-index-1] for index, char in enumerate(binary) if int(char)]) I wrote a ...
5
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1answer
113 views

Convert numbers from base X to base Y

I recently wrote a piece of code to convert between two bases of X, (Where 26 > X > 0). I was mighty proud that I did this. And then I started wondering, am I using modern coding conventions/practices?...
8
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3answers
5k views

Convert binary string to decimal number

I'm finishing the book C Primer Plus by Stephen Prata and I wrote as a part of the homework program to convert binary string to decimal number: ...
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2answers
299 views

Decimal to binary and binary to decimal convertor

Please review this code. How can I optimise this code? ...
3
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2answers
102 views

355 - The Bases Are Loaded (math numbers conversion)

Recently I found this task, which is to convert numbers between arbitrary bases. My code is working fine, but time limit exceeded. ...
5
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1answer
333 views

Swift function to interpret Roman numerals (ported from JavaScript)

I have written some Swift for the first time, being competent enough in Javascript and having some experience in Ruby and Python. For my education, I've written a function that parses a roman numeral ...
6
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1answer
743 views

Roman Numeral class in Python

I've built a Roman numeral class in Python, and I want to know what can be improved in it. An assumption I'm making is that the initialization of an object will use valid Roman numerals (I, V, X, L, C,...
4
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4answers
1k views

Roman numerals to Arabic

I've been learning to code for quite some time and my impression from the programming book I have is: "Keep it as simple as possible, but no simpler." I had an assignment to write a program that ...
6
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4answers
384 views

Interview practice: Integer to Roman

Student here. I'm practicing for coding interviews right now. In that context, how would you recommend I improve my code for this practice problem? ...
9
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6answers
5k views

Base 26 (letters) and Base 10 using recursion

I was messing around with base conversion between decimal and Base26 (alphabet) with no 0th case because I needed it for the Google Sheets API in order to find specific cell values from a 3 ...
5
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4answers
19k views

Hex to Decimal converter

Any feedback is welcome: ...
2
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1answer
1k views

Multiplying binary numbers digit by digit and carry method in Python

I have two numbers encoded in a reversed list of digits. First I made multiplication in "Peano" way: ...