Sigma (uppercase Σ, lowercase σ) is the 18th letter of the Modern Greek alphabet. In Gematria it has the value of 200. The alternative form of sigma (ς) must be used in word-final position. The Greek letter sigma was derived from the Phoenician letter šīn, meaning tooth.

Sigma （大写Σ，小写σ，中文音译： 西格马[1][2]），是第十八个 希腊字母。 在現代的 希臘數字 代表200。 在 希腊语 中，若一个单字的最末一个字母是小写sigma，要把该字母写成 ς，此字母又称 final sigma （Unicode: U+03C2 （页面存档备份，存于 互联网档案馆））。 大写Σ可以表示： 数学 上的 求和符号 （又称 和式号）。 粒子物理学 中的一类 重子 （Σ重子）。 小写σ可以表示： σ键， 化學 上一类原子轨道“头碰头”形成的 化学键。 统计学 上的 标准差。 除数函数。 σ-代 …

Sigma (/ ˈsɪɡmə / SIG-mə; [1] uppercase Σ, lowercase σ, lowercase in word-final position ς; Ancient Greek: σίγμα) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase …

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The Greek letter σ (sigma) is used in statistics to represent the standard deviation of a population.

Sigma (uppercase/lowercase Σ σ ς) is the 18th letter of the Greek alphabet. It is used to represent the "s" sound in Ancient and Modern Greek. In the system of Greek numerals, it has a value of 235. Letters that came from it include the Roman S and Cyrillic С.

In chemistry, sigma bonds are a type of chemical bond named using this symbol. The sigma symbol (Σ σ/ς) is the 18th letter of the Greek alphabet. Learn its meaning, see uppercase 'Σ' and lowercase 'σ/ς' forms, and easily copy and paste the symbol for your use.

2024年4月26日 · Here’s a detailed table providing information about the Sigma symbol (∑): Used primarily to denote summation in mathematical expressions. Why is the Sigma Symbol Important? In mathematics and statistics, the Sigma symbol plays a dual role. The uppercase Sigma (Σ) is a symbol you often encounter in summation notation.

Sigma is the upper case letter S in Greek. And S stands for S um. I love Sigma, it is fun to use, and can do many clever things. 'Times New Roman', Times, serif; > means to sum things up ...

Sigma (Σ, σ) is the eighteenth letter of the Greek alphabet. In the system of Greek numerals, it has a value of 200. In general mathematics, uppercase Σ is used as an operator for summation. When used at the end of a letter-case word (one that does not use all caps), the final form (ς) is …