# Bản mẫu:Math

{{{1}}}

Tài liệu bản mẫu[xem] [sửa] [lịch sử] [làm mới]

The math template formats HTML, or wikimarkup generated mathematical formulas. The template uses the texhtml class by default for inline text style formulas, which aims to match the size of the serif font with the surrounding sans-serif font (see below). The template also prevents line-wrapping.

## Cách sử dụng

Use this template for inline, non-complex formulas as an alternative to using the [itex]...</math> tag pair (see: trợ giúp:Toán).

### Các ví dụ

{{math|''f''(''x'') {{=}} ''b''<sup>''x''</sup> {{=}} ''y''}}

kết quả: f(x) = bx = y
{{math|sin &pi; {{=}} 0}}

kết quả: sin π = 0.
{{math|{{intmath|int|0|+&infin;}} ''e''<sup>−''x''</sup> d''x'' {{=}} 1}}

kết quả: +∞
0
ex dx = 1
'''{{math|{{sfrac|1|2}} − {{sfrac|1|3}} {{=}} {{sfrac|1|6}}}}'''

kết quả: 1/21/3 = 1/6. Note the triple-apostrophes have set the whole formula as bold.
{{math|({{sqrt|2}})<sup>2</sup> {{=}} 2}}

kết quả: (2)2 = 2.

### Sử dụng dấu bằng và giá trị tuyệt đối thanh

The equals sign, =, and bar, |, are used as syntax by the wiki template system. Therefore, if a single equals-sign ("=") is used, it will fail to render, instead showing "{{{1}}}". For example, the following template-coding would be invalid:

{{math|1 + 2 = 3}}
kết quả: {{{1}}}, which is invalid code

To resolve this, either: (a) Start the formula with "1=" as in:

{{math|1=1 + 2 = 3}}
kết quả: 1 + 2 = 3, or else, (b) include the equals-sign in double-braces "{{=}}" as in:
{{math|1 + 2 {{=}} 3}}
kết quả: 1 + 2 = 3.

A similar difficulty concerns the vertical bars ("|") used to indicate absolute value, which without care would get interpreted as part of the template syntax. The solution is different than for the equals sign: such bars should be entered as "{{!}}":

{{math|{{!}}''f''(''x'') − ''a''{{!}} < ε}}
kết quả: |f(x) − a| < ε.

This example can also be produced by the following:

{{math|{{mabs|''f''(''x'') − ''a''}} < ε}}
kết quả: |f(x) − a| < ε

### Các tham số

The following parameters are optional:

• big=1 – This will render the formula in a bigger fontsize, increased to 165%.
• size=font-size – Use this to specify your own fontsize.
{{math|big=1|1 + 2 {{=}} 3}}

kết quả: 1 + 2 = 3

### Dữ liệu bản mẫu

Đây là tài liệu Dữ liệu bản mẫu cho bản mẫu này được sử dụng bởi Trình soạn thảo trực quan và các công cụ khác; xem báo cáo sử dụng tham số hàng tháng cho bản mẫu này.

Dữ liệu bản mẫu cho Math

This template formats markup generated mathematical formulas with HTML and CSS. The template tries to match the size of the serif font with the surrounding sans-serif font. The template also prevents line-wrapping. Use this template for non-complex formulas as an alternative to using the [itex] format.

Tham số bản mẫu

Tham sốMiêu tảKiểuTrạng thái
formula1

wrap an inline formula in wikitext.

Chuỗi dàibắt buộc
bigger font sizebig

if set to ‘1’, this will render the formula in a bigger font size, increased to 165%

Chuỗi dàitùy chọn
custom font sizesize

use this to specify your own font size

Chuỗi dàitùy chọn

## Các ghi chú

The font and fontsize used for texhtml, as defined in MediaWiki:Common.css, was determined by comparing common default fonts found on Windows, OS X and Linux and is scaled to 118% to match their x-height. However, not everyone uses the default fonts. If you find that the rendered math is not of the same size as the surrounding text, you can adjust this in your personal CSS. For instance, the DejaVu Sans and DejaVu Serif fonts do not need scaling, in which case span.texhtml { font-size: 100%; } will restore proper display.

The texhtml classname is a remnant from the TeX renderer, which had a user preference to render TeX-written formula in "HTML when simple". That option has been removed some time ago, but the classname continues to be used for formula written in HTML.