* Greek symbols

  https://www.overleaf.com/learn/latex/List_of_Greek_letters_and_math_symbols

* Outstanding online latex editor

  https://latexeditor.lagrida.com/

  https://editor.codecogs.com/

  (use Tab to move between entry fields)
  (hilight something, then click mouse to put it inside)
  (warning : cannot put a \ inside a \text{} directive in katex)




  \displaystyle --> nicer math format
  \textstyle    --> more compressed for embedding in text paragraphs
  \newline

  \begin{align}
     12  &=& - &x&  &+&    &y& &+&             &z& \\
      0  &=& 3 &x&  &-& 2  &y& &+& 100         &z& \\
    -22  &=& -14&x& &+& 3.4&y& &-& 3\times10^4 &z&
  \end{align}

  \begin{align}
     12  &\ =&  -  &\ x&  &+&    &\ y& &+&             &\ z& \\
      0  &\ =&   3 &\ x&  &-& 2  &\ y& &+& 100         &\ z& \\
    -22  &\ =& -14 &\ x&  &+& 3.4&\ y& &-& 3\times10^4 &\ z&
  \end{align}



* Print to PDFXChange

  For a large set of equations, you must choose a larger paper size

  1. Print to PDF
     Choose PDFXChange
     Hit Properties button
     Change paper size in the Page Size area and in the Layout area

     Print to a pdf file.
     Ignor the preview, it may be wrong
     Print the file once, and it probably is wrong
     Print the file a second time, and it probably works

     Now in PDFXChange, crop all white space and save

     If you import into Inkscape, just choose default. Do not use Cairo





* Tools-->Symbols
  Click Edit

  Set the Font field to       : Source Serif Pro
  Set the Symbol set field to : GregSet
  Find and click the "alpha" symbol, then change the name in the Symbol field to : galf
  (for creating new symbols ignore the "Old symbol" / "Old symbol set" items at the top)
  (for creating new symbols ignore the "From" indicator above the OK button)
  (for creating new symbols, make sure the to stuff above the Cancel button is ok)



* To import to Inkscape

  Print to PDFXchange, then crop with crop tool
  Import cairo works fine
  Import default may work even better but may result in some unwanted groupings




* Appendix A (p. 58 - 72) of the PDF Manual has everything

  https://gregbox.org/PDF/AAA_FastMath.pdf



* LibreOffice Math

  Format-->Fonts

      Formula Fonts
        Variables : Source Serif Pro
        Functions : Source Serif Pro
        Numbers   : Source Serif Pro
        Text      : Source Serif Pro

      Custom Fonts
        Serif       : Comic Sans MS
        Sans-serif  : Comic Sans MS
        Fixed-width : Comic Sans MS



  Format --> Font_Size

      Base size : 12    (changing this can cause integral sign to be wrong on new fresh pages)

      Text      : 100%
      Indexes   :  60%
      Functions : 100%
      Operators :  85%   (looks better than 100%)
      Limits    :  60%



  Format --> Spacing
      Spacing      :  0%  (use ` and ~ to manually insert all spaces)
      Line spacing :  5%
      Root spacing :  0%










* Set Format-->Spacing-->Spacing

  set this to 0%
  Then use ` and ~ as spaces
  (make sure to click default so that it remembers this next time)

* Set Operator sizing to 85%

  (make sure to click default so that it remembers this next time)

* Print to pdf using PDFXChange print driver
  import to inkscape using either default or cairo
  cairo results in larger pdf, and fonts are convert to paths, but still same resolution
  poplar is smaller, remain fonts,  but some equations are not separable

* Select Font : Source Serif Pro  (leave at 12pt - scale by 2 after importing to InkScape)


* Add special GregSet symbols


  %galf - alpha
  %gbet - beta
  %gdel - delta
  %geq  - equals
  %ginf - infinity
  %glam - lambda
  %gmin - minus
  %gmu  - mu
  %gph  - phi
  %gpi  - pi
  %gpls - plus
  %gsig - sigma
  %gt   - tau
  %gth  - theta
  %gw   - omega

  
* Quick Tips

        `  -->  small space
        ~  -->  big   space
        F4 -->  move to next place holder
  <shft>F4 -->  move backward place holder

newline
nospace



* You can get elements from the elements menu on the left, or simply
  right click in the formula editor

* greek characters can be entered with %cname
  note however that these are their own font

  %alpha %pi %PI




* Tools --> Options --> LibreOffice --> General : Extended_Tips

* LibreOffice Math

  Format-->Fonts

      Formula Fonts
        Variables : Liberation Serif, Italic
        Functions : Liberation Serif
        Numbers   : Liberation Serif
        Text      : Liberation Serif

      Custom Fonts
        Serif       : Liberation Serif
        Sans-serif  : Liberation Sans
        Fixed-width : Liberation Mono



  Format --> Font_Size

      Base size : 12

      Text      : 100%
      Indexes   :  60%
      Functions : 100%
      Operators : 100%
      Limits    :  60%


  Format --> Spacing
      Spacing      : 10%
      Line spacing :  5%
      Root spacing :  0%