👉 In mathematics, a rodinal is a number that can be expressed in base 2 as a product of powers of 2 and an exponent. It's usually denoted by "R". The concept of a rodinal allows for operations to be performed on numbers represented in binary notation, such as addition or multiplication. For example: - \(101_2 + 111_2 = 1101_2\) In base 8 (octal), the