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复杂公式的 Ascii Math 语法

您可以使用Ascii Math格式集成数学表达式。对演示或算法细节很有用。

Ascii Math syntax for complex formulas

You can integrate mathematical expressions using AsciiMath format. Useful for demonstration or algorithm details.

 

= 简介 =

您可以在PlantUML中用AsciiMathJLaTeXMath 符号:

@startuml
:<math>int_0^1f(x)dx</math>;
:<math>x^2+y_1+z_12^34</math>;
note right
Try also
<math>d/dxf(x)=lim_(h->0)(f(x+h)-f(x))/h</math>
<latex>P(y|\mathbf{x}) \mbox{ or } f(\mathbf{x})+\epsilon</latex>
end note
@enduml

或:

@startuml
Bob -> Alice : Can you solve: <math>ax^2+bx+c=0</math>
Alice --> Bob: <math>x = (-b+-sqrt(b^2-4ac))/(2a)</math>
@enduml

 

Maths

You can use AsciiMath or JLaTeXMath notation within PlantUML:

@startuml
:<math>int_0^1f(x)dx</math>;
:<math>x^2+y_1+z_12^34</math>;
note right
Try also
<math>d/dxf(x)=lim_(h->0)(f(x+h)-f(x))/h</math>
<latex>P(y|\mathbf{x}) \mbox{ or } f(\mathbf{x})+\epsilon</latex>
end note
@enduml

or:

@startuml
Bob -> Alice : Can you solve: <math>ax^2+bx+c=0</math>
Alice --> Bob: <math>x = (-b+-sqrt(b^2-4ac))/(2a)</math>
@enduml

 

独立图

您也可以用 @startmath/@endmath 来创建独立的 AsciiMath 公式。

@startmath
f(t)=(a_0)/2 + sum_(n=1)^ooa_ncos((npit)/L)+sum_(n=1)^oo b_n\ sin((npit)/L)
@endmath

或用 @startlatex/@endlatex 来创建独立的 JLaTeXMath 公式。

@startlatex
\sum_{i=0}^{n-1} (a_i + b_i^2)
@endlatex

 

Standalone diagram

You can also use @startmath/@endmath to create standalone AsciiMath formula.

@startmath
f(t)=(a_0)/2 + sum_(n=1)^ooa_ncos((npit)/L)+sum_(n=1)^oo b_n\ sin((npit)/L)
@endmath

Or use @startlatex/@endlatex to create standalone JLaTeXMath formula.

@startlatex
\sum_{i=0}^{n-1} (a_i + b_i^2)
@endlatex

 

这是如何工作的 ?

要绘制这此公式, PlantUML 使用了两个开源项目:

  • AsciiMath 转换 AsciiMath 符号为 LaTeX 表达式。
  • JLatexMath 来显示LaTex 数学公式。 JLaTeXMath 是最好的显示LaTeX代码的 Java 类库。

ASCIIMathTeXImg.js 是一个小到足以集成到 PlantUML 标准发版的。

由于 JLatexMath 太大, 您要单独到 下载它, 然后解压 4 jar 文件 (batik-all-1.7.jar, jlatexmath-minimal-1.0.3.jar, jlm_cyrillic.jarjlm_greek.jar) 到 PlantUML.jar同一目录下。

 

How is this working ?

To draw those formulas, PlantUML uses two OpenSource projects:

  • AsciiMath that converts AsciiMath notation to LaTeX expression.
  • JLatexMath that displays mathematical formulas written in LaTeX. JLaTeXMath is the best Java library to display LaTeX code.

ASCIIMathTeXImg.js is small enough to be integrated into PlantUML standard distribution.

Since JLatexMath is bigger, you have to download it separately, then unzip the 4 jar files (batik-all-1.7.jar, jlatexmath-minimal-1.0.3.jar, jlm_cyrillic.jar and jlm_greek.jar) in the same folder as PlantUML.jar.

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