模板:Ldelim/doc

1. REDIRECT Template:改进使用说明

"Template:Leftdelimiter" and "Template:Leftdelimiter/doc" redirect to here.

This is for producing tall left-handed delimiters for multiline expressions (usually mathematical) in HTML, together with {{rdelim}}, compatible with {{math}}, as an alternative to LaTeX. Up to 5 lines are possible. The name "ldelim" is a shorthand for "left-handed delimiter".

This template uses {{delimiter-es}}, and is used in {{dsqbracket}} and {{drndbracket}}.

Syntax

The template has the code:

{{ldelim|a|b|sup=|sub=}}

containing two parameters:

• the first parameter a is
  • square for square brackets [ ],
  • round for round brackets ( ),
  • vert for vertical bars | |,
  • doublevert for double vertical bars || ||,
• the second parameter b is the number of lines for the expression, and equals one of the values 2, 3, 4, 5.

and two optional parameters:

• sup for superscripts outside of the delimiter,
• sub for subscripts outside of the delimiter.

Without the superscript and subscript parameters, the < sup > or < sub > tags alone will not position the superscripts or subscripts correctly.

No template:math

Lorentz factor

γ(v) =    ⎡⎢⎣1/1 −   ⎛⎝v/c⎞⎠²  ⎤⎥⎦^1⁄2   

Absolute value of a fraction

   │││a + 1⁄2/b + c│││   

Norm of a vector with scalar fractions

    ║║║║    ⎛⎜⎜⎝p/2 + 1/a/3 + b⎞⎟⎟⎠    A +     ⎛⎜⎜⎝q/2 − 1/a + b/3⎞⎟⎟⎠    B║║║║    

A representation of the Lorentz group

  ⎛⎝1/2, 0⎞⎠   ⊕   ⎛⎝0, 1/2⎞⎠  

Ampère's circuital law with Maxwell's correction

∮
∂S B ∙ dx = ∬
S   ⎛⎝μ₀J + 1/c²∂E/∂t⎞⎠   ∙ dS

template:math

Lorentz factor

γ(v) =    ⎡⎢⎣1/1 −   ⎛⎝v/c⎞⎠²  ⎤⎥⎦^1⁄2   

Absolute value of a fraction

   │││a + 1⁄2/b + c│││   

Norm of a vector with scalar fractions

    ║║║║    ⎛⎜⎜⎝p/2 + 1/a/3 + b⎞⎟⎟⎠    A +     ⎛⎜⎜⎝q/2 − 1/a + b/3⎞⎟⎟⎠    B║║║║    

A representation of the Lorentz group

  ⎛⎝1/2, 0⎞⎠   ⊕   ⎛⎝0, 1/2⎞⎠  

Ampère's circuital law with Maxwell's correction

∮
∂S B ∙ dx = ∬
S   ⎛⎝μ₀J + 1/c²∂E/∂t⎞⎠   ∙ dS

See also

• Wikipedia:«math»

External sites

• utf-8 icons
• Graphemica