Diff: Help/TeX2pngPlugin

Differences between current version and predecessor to the previous major change of Help/TeX2pngPlugin.

Other diffs: Previous Revision, Previous Author

Newer page: version 5 Last edited on October 14, 2015 11:47 am by PhilHollenback
Older page: version 4 Last edited on February 23, 2012 2:52 pm by PhilHollenback Revert
@@ -12,14 +12,14 @@
  
 == Arguments == 
  
 There is only one argument which is the text of the mathematical 
-expression. This text *must be* enclosed by a dollar $ within a 
+expression. This text * *must be* * enclosed by a dollar $ within a 
 paragraph or two dollars $$ on a separate line. In the last case, 
 all is centered. 
  
 To write mathematical formulae, the syntax is the one 
-of [LaTeX | http://www.latex-project.org]. 
+of [[ http://www.latex-project.org | LaTeX] ]. 
  
 == Caveats == 
  
 This plugin is only to produce readable mathematical formulae. Any 
@@ -30,29 +30,35 @@
 {{{ 
 <<TeX2png text="$\textrm{\LaTeX}$">> 
 }}} 
  
-This* [[Help:WikiPlugin|plugin]] is not able to produce sophisticated mathematicals texts 
+This [[Help:WikiPlugin|plugin]] is not able to produce sophisticated mathematicals texts 
 with links, cross references... For that, you can use for example 
-[LaTeX2html| http://www.latex2html.org/]. 
+[[ http://www.latex2html.org/ | LaTeX2html] ]. 
  
 == Examples == 
  
 Some Greeks letters : <<TeX2png text="$\alpha$">>, <<TeX2png text="$\beta$">>, ... and a formula <<TeX2png text="$\sum_{i=1}^n \frac1{i^2}=\frac{\pi^2}{6}$">> to test display in a paragraph. 
  
-* Exercise 1* Consider the function <<TeX2png text ="$$f(x) =(x^2-4x+3)^{1/2}$$">>  
+=== Exercise 1 ===  
  
-#Give the largest real domain for which f(x) is well defined.  
-#Give a domain on which the function is one-to-one. Using this domain derive a formula for the inverse function <<TeX2png text="$f^{-1}(x)$">>.  
-#Calculate the derivative f'(x).  
+Consider the function:  
  
-* Exercise 2* Consider the function : 
+<<TeX2png text="$$f(x)=(x^2-4x+3)^{1/2}$$">>  
+  
+# Give the largest real domain for which f(x) is well defined.  
+# Give a domain on which the function is one-to-one. Using this domain derive a formula for the inverse function <<TeX2png text="$f^{-1}(x)$">>.  
+# Calculate the derivative f'(x).  
+  
+=== Exercise 2 ===  
+  
+ Consider the function: 
  
 <<TeX2png text="$$f(x) = \int_0^x e^{-t^2}\,dt, x\in\mathbb R$$">> 
  
-#Show that for all r > 0 :<<TeX2png text="$$\frac{\pi}{2}\int_0^r t e^{-t^2}\,dt \leq \int_0^r e^{-x^2}\,dx \int_0^r e^{-y^2}\,dy \leq \frac{\pi}{2} \int_0^{\sqrt{2} r} t e^{-t^2}\,dt$$">> *Help* : you can use polar coordinates.  
-#Hence find the limit of <<TeX2png text="$f(x)$">> as x tends <<TeX2png text="to $\infty$">>. 
+# Show that for all r > 0 :<<TeX2png text="$$\frac{\pi}{2}\int_0^r t e^{-t^2}\,dt \leq \int_0^r e^{-x^2}\,dx \int_0^r e^{-y^2}\,dy \leq \frac{\pi}{2} \int_0^{\sqrt{2} r} t e^{-t^2}\,dt$$">> * *Help* *: you can use polar coordinates.  
+# Hence find the limit of <<TeX2png text="$f(x)$">> as x tends <<TeX2png text="to $\infty$">>. 
  
 <noinclude> 
 ---- 
 [[PhpWikiDocumentation]] [[CategoryWikiPlugin]] 
 </noinclude> 

current version

The TeX2png plugin allows to display mathematical formulae in a Wiki page.

Usage

<<TeX2png text="$$(a+b)^n=\sum_{k=0}^n{n\choose k}a^k b^{n-k}$$">>

gives


PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable.

Arguments

There is only one argument which is the text of the mathematical expression. This text must be enclosed by a dollar $ within a paragraph or two dollars $$ on a separate line. In the last case, all is centered.

To write mathematical formulae, the syntax is the one of LaTeX.

Caveats

This plugin is only to produce readable mathematical formulae. Any other text is not allowed : so if an expression is not enclosed by dollars then it will be displayed by a red text. It is all the same possible to display raw text as
PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable. by using :

<<TeX2png text="$\textrm{\LaTeX}$">>

This plugin is not able to produce sophisticated mathematicals texts with links, cross references... For that, you can use for example LaTeX2html.

Examples

Some Greeks letters :
PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable.,
PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable., ... and a formula
PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable. to test display in a paragraph.

Exercise 1

Consider the function:


PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable.
  1. Give the largest real domain for which f(x) is well defined.
  2. Give a domain on which the function is one-to-one. Using this domain derive a formula for the inverse function
    PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
    PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
    PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable..
  3. Calculate the derivative f'(x).

Exercise 2

Consider the function:


PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable.
  1. Show that for all r > 0 :
    PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
    PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
    PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable. Help: you can use polar coordinates.
  2. Hence find the limit of
    PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
    PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
    PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable. as x tends
    PhpWiki Warning: (8, Undefined offset: 6, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
    PhpWiki Warning: (8, Undefined offset: 5, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)
    PhpWiki Warning: (8, Undefined offset: 4, /var/www/phpwiki/lib/plugin/TeX2png.php, 71)TeX imagepath not writable..
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