What does ∼ mean?

"∼" 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 does ∼ mean in statistics?

As a general rule, the symbol ∼ can be read as "behaves like" or "behaves according to". In Statistics, it is used to indicate that a variable follows a certain distribution. So, for example, X∼N(μ,σ2) can be read as "X behaves according to a Normal distribution". This is the usage relevant in the image in question.

What does the tilde symbol mean?

As a mathematical symbol, the tilde means "approximately" and in logic it means "not." The tilde is one of the 128 alphanumeric and special characters in ASCII, the most common standard for electronic text exchange. The tilde happens to be ASCII character 126. This was last updated in January 2015.

What does a tilde mean in text?

In informal writing, a tilde is sometimes used before a number to mean “about” or “approximately.” For example, a sentence that reads I think my dog weighs ~20 pounds means I think my dog weighs about/around 20 pounds. This usage is likely based on the math usage of the tilde symbol to mean an approximate equivalency.

What does the squiggle mean in math?

(1) In mathematics, the tilde (~) stands for equivalence; for example, a ~ b means "a is equivalent to b" (not equal, but comparable). It also stands for approximation. Officially written as two tildes, one over the other, the single tilde has become acceptable; for example, ~100 means "approximately 100."

Do Parents Know Secret Emoji Meanings?

What is ≈ called?

The symbol ≈ means approximately equal to.

What does tilde mean in probability?

A tilde (~) denotes "has the probability distribution of". Placing a hat, or caret, over a true parameter denotes an estimator of it, e.g., is an estimator for . The arithmetic mean of a series of values x₁, x₂, ..., x_n is often denoted by placing an "overbar" over the symbol, e.g. , pronounced "x bar".

When would you use a tilde?

In English, a tilde often goes before a description of quantity or time to indicate an approximation, as in “~20 miles away.” In mathematics, it can also signify “similar to,” as in “x ~ y.” In other languages, the tilde is used as a means of indicating a change in pronunciation.

How do you read a tilde?

The tilde is the mark "~" placed on top of a symbol to indicate some special property. -tilde." The tilde symbol is commonly used to denote an operator. In informal usage, "tilde" is often instead voiced as "twiddle" (Derbyshire 2004, p. 45).

What is the squiggly line called?

It's called a tilde. Around the 12th century, Spanish scribes, in part to save paper, placed the tilde over a letter to indicate that it was doubled.

What does a tilde before a number mean?

When you put a tilde before a number, for example, you're saying that the number is approximate. If you wanted to say that your club had about $1,500 in the bank, you could use a tilde to write that the club had ~$1,500. Definitions of tilde.

How do you calculate tilde?

The general formula to calculate the tilde operation ~i on an integer value i is ~i=-i-1 .

What does tilde above a function mean?

The tilde can have a variety of meanings in different contexts, but as is made clear later in the paper, the tilde over the p is being used there to indicate an empirical probability function (rather than a theoretical model/population probability function) - that is, one made from the sample proportions of each of the ...

What issues does the squiggly line represent?

The lines are for the following: Red for flagged spelling errors (or words that MS Word doesn't know). Green for flagged gramatical errors, such a subj/verb aggreement.. Blue for flagged contextual errors.

What is tilde used for in writing?

Practical uses of the tilde

The tilde (~) is a diacritic mark, which can indicate a particular pronunciation for the letter it is attached to, or be used as a spacing character. In lexicography (a subject within linguistics) the tilde is used in dictionaries to indicate omission of an entry word.

What is the value of ΜX?

The term called the expected value of some random variable X will be represented as E(X)= μx=∑. In this statistical formula, the symbol 'μx' represents the expected value of some random variable X. The symbol 'P (xi)' represents the probability that the random variable will have an outcome 'i.

What does :) mean in texting?

Summary of Key Points. "Happy" is the most common definition for :) on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok. :) Definition: Happy.

What does 3 mean?

The emoticon <3. means "Love." The characters < and 3 (which literally mean "less than three") form a picture of a heart on its side, which is used as an emoticon, meaning "love." For example: Sam: <3. Ali: <3.

What does '~' mean in python?

The bitwise operator ~ (pronounced as tilde) is a complement operator. It takes one bit operand and returns its complement. If the operand is 1, it returns 0, and if it is 0, it returns 1.

Is there a ++ in Python?

Python does not allow using the “(++ and –)” operators. To increment or decrement a variable in python we can simply reassign it. So, the “++” and “–” symbols do not exist in Python.

What does %s mean in Python?

The %s operator is put where the string is to be specified. The number of values you want to append to a string should be equivalent to the number specified in parentheses after the % operator at the end of the string value. The following Python code illustrates the way of performing string formatting.

How do we read this symbol ⊥?

The symbol ⊥ means is perpendicular to . The right angle symbol in the figure indicates that the lines are perpendicular.

What does => mean in math?

It stands for "implies that". For example, x=2⟹x2=4 - if x is 2, then it is obvious that x squared is 4; the symbol essentially shows a function here.

What does :: mean in math?

Double colon. ... averaged with ... arithmetic mean. 3 :: 11 = 7.