Questions tagged [number-systems]

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

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3
votes
1answer
48 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
votes
1answer
264 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
50 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
votes
1answer
57 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 ...
1
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2answers
70 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
votes
3answers
87 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
106 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 : ...
0
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2answers
74 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
vote
1answer
46 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
431 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. ...
7
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5answers
336 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
votes
1answer
901 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
votes
3answers
284 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
635 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
260 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: ...
16
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1answer
21k 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
vote
1answer
222 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
votes
1answer
153 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
181 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
198 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 ...
3
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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
votes
1answer
246 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
votes
1answer
105 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
3k 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: ...
1
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2answers
244 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
101 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
votes
1answer
236 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
votes
1answer
400 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
votes
4answers
896 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
votes
4answers
336 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? ...
8
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6answers
3k 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
votes
1answer
889 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: ...
7
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2answers
1k views

Binary to decimal converter

I started a few weeks ago to learn C++ online. I just made a little binary → decimal program. Here is my code: ...
5
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3answers
4k views

Decimal/binary/hex converter

I've finally finished my converter and have determined that it works, but I'm trying to make it cleaner and/or more practical (primarily with the switch statements)....
6
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3answers
103 views

Learn You A Hex

This small program generates random operands and operations and asks the user to perform the computation and input the result. I want to make it more C++ and remove any C-ness it might inappropriately ...
4
votes
1answer
164 views

C++ with Qt - Conversion of angle in radians to DDD°MM′SS.FFF″ string

I had to write a function which takes an angle in radians and precision N as input and returns a string representation of its magnitude in the format DDD°MM′SS.FFF″ ...
9
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1answer
6k views

Implement numbering scheme like A,B,C… AA,AB,… AAA…, similar to converting a number to radix26

I want to implement numbering scheme like Microsoft Word uses for numbering. first one gets = A,next is B, next is C, .... then AA, then AB,....and so on. as shown below ...
4
votes
1answer
95 views

Multiple base numbers parser

This code is a Parser that parses numbers according to R5RS. #b1001 - binary #o2127 - octal #h02d - hexadecimal #d1231 - decimal 3923 - decimal It is working ...
3
votes
2answers
411 views

Base Conversion in Node.js

I am doing a program for my APCS class in Node.js to practice node, but I am unsure if I did everything the best way possible. The assignment is to take the number and base as user input and then ...
1
vote
1answer
1k views

Binary calculator

I made a Binary Calculator that gives the user's the decimal value of their input. I tried to make my code as small as possible but I feel like there's still too much lines of code for such a simple ...
4
votes
3answers
101 views

Function to represent an integer in a base

This function represents an integral type and represents it in a base. ...
2
votes
1answer
1k views

Convert number from one radix to another

I am relatively new to coding and could use some help figuring out how I could improve my coding technique and habits. Here's an example of a working Java program I wrote that converts a number of ...
6
votes
2answers
1k views

Adding arbitrarily long integers C++ (string represented)

I'm working through some Project Euler problems using C++ and some of the numbers in question are starting to get quite large (21000 for Problem 16) and I need to add some of these large numbers ...
6
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2answers
6k views

Convert Persian and Arabic digits to English

I use the following utility method to convert Persian and Arabic digits to English using regex: ...
3
votes
1answer
68 views

Is this an efficient implementation of the Roman Numeral Converter?

Is this an efficient way to implement the Roman Numeral Converter ? So first, I put all the digits of the parameter number into an array. Then I loop through this array, and multiply a 10 power ...
4
votes
1answer
461 views

Binary to decimal conversion and vice-versa

I need to write a code for conversion between the decimal numbers and binary numbers. I have tried the problem and what I have is 3 classes and 1 enum type ...
1
vote
2answers
110 views

Generic numerical systems conversion

This program is a start point to a more comprehensive program that deals with different numerical systems from binary until 35 base. That includes the traditional decimal, octal and hex. It is until ...
4
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2answers
2k views

Excel-like column numbering

I have a working code (below) to convert a number to Excel-like (A...Z AA...AZ BA...BZ ...ZA-ZZ) column codes (headers). For ...