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A diacritic (also diacritical mark, diacritical point, diacritical sign, or accent) is a glyph added to a letter or to a basic glyph. The term derives from the Ancient Greek διακριτικός ( diakritikós , "distinguishing"), from διακρίνω ( diakrínō , "to distinguish").
Tau, the ratio of the circumference to the radius of a circle, which is equal to 2 π (6.28318...) [14] [15] Tau functions, several; Torsion of a curve in differential geometry [16] [note 1] Translation in Euclidean geometry (although the Latin letter T is used more often) The Prouhet–Thue–Morse constant
The "hierarchy of operations", also called the "order of operations" is a rule that saves needing an excessive number of symbols of grouping.In its simplest form, if a number had a plus sign on one side and a multiplication sign on the other side, the multiplication acts first.
Double oblique hyphen in a Fraktur typeface. In Latin script, the double hyphen ⹀ is a punctuation mark that consists of two parallel hyphens (‐).It was a development of the earlier double oblique hyphen ⸗, which developed from a Central European variant of the virgule slash, originally a form of scratch comma.
The greater-than sign is a mathematical symbol that denotes an inequality between two values. The widely adopted form of two equal-length strokes connecting in an acute angle at the right, >, has been found in documents dated as far back as 1631. [1]
For example: in the usual order of algebraic operations, 4 × 3 + 2 equals 14, since the multiplication is done before the addition. However, 4 × (3 + 2) equals 20, because the parentheses override normal precedence, causing the addition to be done first. Some authors follow the convention in mathematical equations that, when parentheses have ...
Symbol Name Meaning SI unit of measure nabla dot : the divergence operator often pronounced "del dot" per meter (m −1) : nabla cross : the curl operator often pronounced "del cross"
Upward arrows are often used to indicate an increase in a numerical value, and downward arrows indicate a decrease. In mathematical logic, a right-facing arrow indicates material conditional, and a left-right (bidirectional) arrow indicates if and only if, an upwards arrow indicates the NAND operator (negation of conjunction), an downwards arrow indicates the NOR operator (negation of ...