"∼" 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.
Approximations. 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.
Informally, it means "approximately", "about", or "around", such as "~30 minutes before", meaning "approximately 30 minutes before".
To create the tilde symbol using a U.S. keyboard, hold down Shift and press ~ . This symbol is on the same key as the back quote ( ` ), in the top-left portion of the keyboard under Esc.
(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."
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".
In set theory, means that there is an equivalence relation between and . 4. In statistics, the tilde is frequently used to mean "has the distribution (of)," for instance, means "the stochastic (random) variable has the distribution (the standard normal distribution).
To add accent marks to letters in foreign words, Microsoft Word users can utilize the following keyboard shortcuts to add the accent marks. For example, to get the character ñ, press the Ctrl and Shift Keys while pressing the ~ key (tilde key). Then, release all three keys and quickly press the n key.
"É" can be typed by pressing Alt + 1 4 4 or Alt + 0 2 0 1 . On US International and UK English keyboard layouts, users can type the acute accent letter "é" by typing AltGR + E . This method can also be applied to many other acute accented letters which do not appear on the standard US English keyboard layout.
Hold down the " a " key on your keyboard and select the " æ " symbol from the drop-down list.
Curly brackets {}
Curly brackets, also known as braces, are rarely used punctuation marks that are used to group a set.
Show activity on this post. In CSS /* marks the start of a comment, while */ marks its end.
/ˈtɪldə/ A tilde is a character on a keyboard that looks like a wavy line (~). The Spanish alphabet has 27 letters instead of the English 26, because it includes both n and ñ, each of which is pronounced differently. The tilde has other uses as well.
"≈" (two tildes or wavy lines, often used for "approximately equal") "⩰" (two tildes above two lines) "≅" (one tilde above two lines, often used in modular arithmetic to state a congruence relation)
Quantities are denoted as approximately equal to by the print symbol of a double tilde or two parallel wavy lines.
Ñ, or ñ (Spanish: eñe, [ˈeɲe] ( listen)), is a letter of the modern Latin alphabet, formed by placing a tilde (also referred to as a virgulilla in Spanish, in order to differentiate it from other diacritics, which are also called "tildes") on top of an upper- or lower-case N. It became part of the Spanish alphabet in ...
A diaeresis is a mark placed over a vowel to indicate that the vowel is pronounced in a separate syllable—as in 'naïve' or 'Brontë'. Most of the English-speaking world finds the diaeresis inessential. The New Yorker may be the only publication in America that uses it regularly.
→ “é” always sounds like \e\ (“ey” in “hey.”) The rising mark on top is called “un accent aigu.” → “è” always sounds like \ɛ\ (“e” in “bet.”) The descending mark on top is called “un accent grave.”
Í, í (i-acute) is a letter in the Faroese, Hungarian, Icelandic, Czech, Slovak, and Tatar languages, where it often indicates a long /i/ vowel (ee in English word feel).
Á, á (a-acute) is a letter of the Chinese (Pinyin), Blackfoot, Czech, Dutch, Faroese, Galician, Hungarian, Icelandic, Irish, Lakota, Navajo, Occitan, Portuguese, Sámi, Slovak, Spanish, Vietnamese, Welsh, and Western Apache languages as a variant of the letter a.
Portuguese. In the Portuguese language, the symbol Õ stands for a nasal close-mid back rounded vowel, also written [õ] in IPA. It is not considered an independent letter of the alphabet: the tilde is the standard diacritic for nasalization.
It means convergence in probability. In your case, it's about random processes rather than random variables. It says that the series of random processes will converge towards a single random process.
In modern mysticism, the infinity symbol has become identified with a variation of the ouroboros, an ancient image of a snake eating its own tail that has also come to symbolize the infinite, and the ouroboros is sometimes drawn in figure-eight form to reflect this identification—rather than in its more traditional ...
There are different types of mean, viz. arithmetic mean, weighted mean, geometric mean (GM) and harmonic mean (HM).