Master negabinary (base (–2)) with visual examples! Learn how to count, convert, and do math without sign bits in this fun guide to negative-base numbers.

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Negabinary (base -2) is a number system that uses powers of -2 instead of 2, allowing representation of both positive and negative numbers without sign bits. The conversion process from decimal to negabinary involves dividing by -2 and adjusting negative remainders by adding 1 to the quotient and 2 to the remainder. Converting back to decimal requires mapping each digit to its corresponding power of -2. A key insight is that you can determine if a negabinary number is positive or negative by checking the position of the leading bit - even positions indicate positive numbers, odd positions indicate negative numbers.

How to Count in Negabinary (Base (-2)) — A Visual Guide