What does this weird notation mean (looks like “#.1”)?



Asked by: Mike Davidson

What does this symbol ∼ represent?





“∼” is one of many symbols, listed in the Wikipedia article on approximation, used to indicate that one number is approximately equal to another. Note that “approximately equal” is reflexive and symmetric but not transitive. “∼” is one of many symbols used in logic to indicate negation.

What is the weird e looking thing in math?

The symbol ∑ indicates summation and is used as a shorthand notation for the sum of terms that follow a pattern.

What does R2 → R mean?

Hence, we can refer to f:R2→R as a scalar-valued function of two variables or even just say it is a real-valued function of two variables. Everything works the same for scalar valued functions of three or more variables. For example, f(x,y,z), which we can write f:R3→R, is a scalar-valued function of three variables.

What is this symbol mean?


What is the symbol for mean as it mean like the word average.

What is ≈ called?





approximately equal to

The symbol ≈ means approximately equal to.

What is this symbol called?

This table contains special characters.

Symbol Name of the symbol Similar glyphs or concepts
Almost equal to Approximately equal to sign.
& Ampersand plus sign
⟨ ⟩ Angle brackets Bracket, Parenthesis, Greater-than sign, Less-than sign
‘ ‘ Apostrophe Quotation mark, Guillemet, Prime, Grave

How do you use ∑?

A series can be represented in a compact form, called summation or sigma notation. The Greek capital letter, ∑ , is used to represent the sum. The series 4+8+12+16+20+24 can be expressed as 6∑n=14n . The expression is read as the sum of 4n as n goes from 1 to 6 .

What is the pointy e in math?

Σ This symbol (called Sigma) means “sum up



What do UwU mean?

cute face

Uwu is an emoticon depicting a cute face. It is used to express various warm, happy, or affectionate feelings. A closely related emoticon is owo, which can more specifically show surprise and excitement. There are many variations of uwu and owo, including and OwO, UwU, and OwU, among others.

How do I find out what a symbol means?

6 Ways to Find Symbols and Look Up Symbol Meanings



  1. Identify Symbols Using Symbols.com. The aptly named Symbols.com is a great place to start your search. …
  2. Draw a Symbol to Find Out Its Meaning. …
  3. Search Symbols With Google. …
  4. Browse a List of Symbols. …
  5. Learn What Emoji Symbols Mean. …
  6. Utilize a Stock Ticker Symbol Finder.


What does _ mean in text?

The emoticon . _. means “Apathy,” “Disappointment,” or “Resignation.”

What does mean in texting?

— Means “hot” in a sexual sense; a kid might comment this on their crush’s Instagram selfie, for example. 🚛 — “Dump truck,” which refers to a large and/or shapely bottom.

What is this face ?

Pleading Face Emoji



The Pleading Face emoji depicts a yellow face with large puppy-dog eyes and a small frown. It is meant to represent the typical face one makes when pleading, that is, trying to win their compassion or sympathy.



What does 3 mean from a girl?

Love” is the most common definition for <3. on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok. <3. Definition: Love.

What does 😏 mean from a girl?

As its official name reveals, 😏 Smirking Face represents the facial expression of a smirk. It’s used to communicate a range of feelings, including smugness, self-confidence, self-indulgence, mischief, cheeky humor, and general satisfaction. 😏 Smirking Face especially implies, however, flirtation and sexual innuendo.

What does 💕 mean in texting?

💕 Two Hearts emoji



Portraying two heart symbols, with the larger one bigger and in the front, the two hearts emoji is widely used to express love, affection, pleasure, or happiness.