number-systems – Tarik Billa

Displaying a number in Indian format using Javascript

April 9, 2023 by Tarik

i’m late but i guess this will help 🙂 you can use Number.prototype.toLocaleString() Syntax numObj.toLocaleString([locales [, options]]) var number = 123456.789; // India uses thousands/lakh/crore separators document.getElementById(‘result’).innerHTML = number.toLocaleString(‘en-IN’); // → 1,23,456.789 document.getElementById(‘result1’).innerHTML = number.toLocaleString(‘en-IN’, { maximumFractionDigits: 2, style: ‘currency’, currency: ‘INR’ }); // → ₹1,23,456.79 <div id=”result”></div> <div id=”result1″></div>

Algorithms based on number base systems? [closed]

January 25, 2023 by Tarik

Chris Okasaki has a very good chapter in his book Purely Functional Data Structures that discusses “Numerical Representations”: essentially, take some representation of a number and convert it into a data structure. To give a flavor, here are the sections of that chapter: Positional Number Systems Binary Numbers (Binary Random-Access Lists, Zeroless Representations, Lazy Representations, … Read more

Why does Apache Commons consider ‘१२३’ numeric?

January 2, 2023 by Tarik

Because that “CharSequence contains only Unicode digits” (quoting your linked documentation). All of the characters return true for Character.isDigit: Some Unicode character ranges that contain digits: ‘\u0030’ through ‘\u0039’, ISO-LATIN-1 digits (‘0’ through ‘9’) ‘\u0660’ through ‘\u0669’, Arabic-Indic digits ‘\u06F0’ through ‘\u06F9’, Extended Arabic-Indic digits ‘\u0966’ through ‘\u096F’, Devanagari digits ‘\uFF10’ through ‘\uFF19’, Fullwidth digits … Read more

Quickest way to convert a base 10 number to any base in .NET?

December 15, 2022 by Tarik

Convert.ToString can be used to convert a number to its equivalent string representation in a specified base. Example: string binary = Convert.ToString(5, 2); // convert 5 to its binary representation Console.WriteLine(binary); // prints 101 However, as pointed out by the comments, Convert.ToString only supports the following limited – but typically sufficient – set of bases: … Read more