User:Programmatically/sandbox

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/Linear Algebra Textbooks /Gamow Peak The Gamow peak is an important concept in stellar nucleosynthesis.

2 H2O (l) + CO2 (g) → 2 O2 (g) + CH4 (g)

Subscripts and superscripts should be wrapped in <sub> and <sup> HTML tags, respectively, with no other formatting info, with some exceptions (see below). The {{sup}} and {{sub}} templates are useful shortcuts to the HTML markup. Do not use the Unicode subscripts and superscripts ² and ³, or XML/HTML character entity references (² etc.). Rather, write <sup>2</sup> and <sup>3</sup> to produce the superscripts ² and ³. The superscripted 2 and 3 are easier to read, especially on small displays, and ensure that exponents are properly aligned. Compare:

wⁱx²z⁽ⁿ⁺⁶⁾ (Unicode superscripts) to

wⁱx²z^{(n + 6)} (w<sup>i</sup>x<sup>2</sup>z<sup>(n + 6)</sup>) or

wⁱx²z^{(n + 6)} (w{{sup|i}}x{{sup|2}}z{{sup|(n + 6)}})

1 + x² + y³ (²) to

x&sup332;

1 + x² + y³ (<sup>2</sup>) or

1 + x² + y³ ({{sup|2}})

x³³²

These guidelines also apply in citations and template parameters; templates are responsible for cleaning up markup if needed for external consumption, e.g. for COinS.

• The ordinal suffix (e.g., th) is not superscripted (23rd and 496th, not 23^rd and 496^th).
• Centuries and millennia are written using ordinal numbers, without superscripts and without Roman numerals: the second millennium, the 19th century, a 19th-century book (see also Wikipedia:Manual of Style#Numbers as figures or words).
• Non-base-10 notations in non-computer-related articles use subscript notation. For example: 137₉, 241₆, 2A9₁₂, A87D₁₆ (use {{sub|radix}} or <sub>radix</sub>).

• In figured bass, superscript and subscript may be combined by using math markup or by using the {{su}} template: <math>C_6^4</math> = , ''C''{{su|b=6|p=4}} = C⁴
  ₆; (see also Wikipedia:TeX markup or m:Help:Formula).
• A superscript circle, or degree sign, which indicates a diminished chord, that may not display correctly for everyone, "°", can be produced by copying and pasting, typing °, or by keying Alt+0176 (Windows PCs). A superscript lower case "^o" ({{sup|o}}) may be used instead. The slashed o, "^ø", which may not display correctly for all readers, is produced by superscripting the character produced by typing ø, or by keying Alt+0248 (Windows PCs). Diminished chords can also be indicated with {{music|dim}} and {{music|dimslash}}.
• For inversions and the degree sign superscript and subscript may be done thus: vii{{sup|o}}, I{{sub|6}}. This looks like: vii^o, I₆.

• Squared and cubic metric-symbols are always expressed with a superscript exponent (5 km², 2 cm³); squared imperial and US unit abbreviations may be rendered with sq, and cubic with cu (15 sq mi, 3 cu ft).

A template is available to render consistently. The above example is coded with the template syntax {{sup|2}} rather than <sup>2</sup> or the special Unicode superscript digit '²'.

1. e^2.71828182
2. base m⁰
3. deca m¹
4. hecto m²
5. kilo m³
6. mega m⁶
7. giga m⁹
8. tera m¹²
9. peta m¹⁵
10. exa m¹⁸
11. zetta m²¹
12. yotta m²⁴