The emoticon O_O means 'Confused' or 'Dumbfounded.' This page explains how O_O is used in texting or on apps like TikTok or Instagram.

Zero to the power of zero, denoted as 0 0, is a mathematical expression with different interpretations depending on the context.

0 (zero) is a number representing an empty quantity. Adding (or subtracting) 0 to any number leaves that number unchanged; in mathematical terminology, 0 is the additive identity of the integers, rational numbers, real numbers, and complex numbers, as …

0O (zero O) or 0-O may refer to: 0o, 0_o, and 0.o, a kaomoji emoticon that may refer to shocked, disturbed, or confused. 0-O, abbreviation for 0-operand instruction set

Letter O song has lots of repetition to enhance and strengthen learning. Jack sings the letter, letter sound and word the first two times and the third time he sings the letter and letter sounds...

To textually raise one's eyebrow as an expression of shock, bemusement, plain amazement or in any 'lost for words' scenario. Similar to a combination of MSN ^o) and :| and :O, a generally mutli-purpose smiley! Extreme usage on Active Worlds within SW City as the lingo of …

The slang term "0_o" is often used to represent a facial expression of confusion, surprise, or disbelief. It is typically used in online communication, such as chat rooms, forums, and social media platforms, where users can express their emotions through text-based messages.

2011年7月14日 · Long, long ago, typewriters made no distinction between the number 0 and the letter O. While the two share the same shape, the origin of both number and letter are quite different. Let’s look at the distinct astrological and optical inspirations that created these seemingly identical symbols.

2010年7月9日 · If you assume that every instruction, even pass (NOP), takes time, then the complexity is f(n) = c for some constant c, and unless c != 0 you can only say that f is O(1), not O(0). It's worth noting big O by itself does not have anything to do with algorithms.

0 is the integer that precedes the positive 1, and follows −1. In most numerical systems, 0 was identified before the idea of "negative integers" was accepted. It means "courageous one" in hieroglyphics. [source?]