∧ is (most often) the mathematical symbol for logical conjunction, which is equivalent to the AND operator you’re used to. The expression is read as the sum of 4n as n goes from 1 to 6. The Greek capital letter, ∑, is used to represent the sum. In the system of Greek numerals, it has a value of 200.Ī series can be represented in a compact form, called summation or sigma notation. Sigma (/ˈsɪɡmə/ uppercase Σ, lowercase σ, lowercase in word-final position ς Greek: σίγμα) is the eighteenth letter of the Greek alphabet. For comparison, “f(x) = 0” is an equation, one could find its solutions… −1. “≡” means “identically equal to”, for example “f(x) ≡ 0” means that the equality “f(x) = 0” holds for any x. “a ≡ b” is NOT used for “a is defined to be b” - not in mathematics.
#Equivalent symbol in math code
The triple bar character in Unicode is code point U+2261 ≡ IDENTICAL TO. It has the appearance of an equals sign ⟨=⟩ sign with a third line. The triple bar, ≡, is a symbol with multiple, context-dependent meanings.
P :⇔ Q means P is defined to be logically equivalent to Q. x ≔ y or x ≡ y means x is defined to be another name for y (but note that ≡ can also mean other things, such as congruence).
#Equivalent symbol in math plus
This table contains special characters.SymbolName of the symbolSimilar glyphs or concepts≈Almost equal toApproximately equal to sign.&Ampersandplus sign⟨ ⟩Angle bracketsBracket, Parenthesis, Greater-than sign, Less-than sign’ ‘ApostropheQuotation mark, Guillemet, Prime, Grave90 more rowsīasic math symbolsSymbolSymbol NameMeaning / definitionbracketscalculate expression inside first+plus signaddition−minus signsubtraction±plus – minusboth plus and minus operations28 more rowsĭefinition. For example, the sum of the first 4 squared integers, 12+22+32+42, follows a simple pattern: each term is of the form i2, and we add up values from i=1 to i=4. SummationThe symbol ∑ indicates summation and is used as a shorthand notation for the sum of terms that follow a pattern. The two sides of a relationship indicated by this symbol will not be accurate enough to manipulate mathematically. ≈ means approximately equal to, or almost equal to. This is similar to, but not exactly the same as, equals. ≈ : ALMOST EQUAL TO (U+2248) ≃ : ASYMPTOTICALLY EQUAL TO (U+2243) ≅ : APPROXIMATELY EQUAL TO (U+2245) The Unicode standard lists all of them inside the Mathematical Operators Block. Approximately equal to≅ (approximately equal to)
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