Math in HTML

How to put math into HTML pages.

Write in HTML / JS

MathML markup
JS libraries:
- AsciiMath
- MathJax

Write in Latex

Write math in latex
Run latex2html to convert it to HTML.
latex2html renders mathematics as inline images
We have 3 colors to think of: the mathematics, its background within the image, and the background of the window. We want black-on-X-on-X.
One way of achieving this is black-on-(transparent)-on-X. This is what latex2html does by default.
My pages use black-on-white-on-white. Normal, solid, non-transparent, white gifs, and a white background.

How to make non-transparent gifs (latex2html switch)

TRANSPARENT_IMAGES 0;

How to make non-transparent gifs (comment latex2html code)

Other way: latex2html generates normal gifs first and only then runs a routine to make them transparent. So I copied the latex2html file itself, edited the make_transparent routine, and commented out the relevant lines.

How to convert to other color (netpbm)

You can then convert these images to a color (non-transparent) other than white, and then give the pages that color background.

To use netpbm / pbmplus to convert the images:

for i in *.gif
do
 giftopnm $i | pnmdepth 255 | pgmtoppm "#ffffcc" | ppmtogif > tmp.gif
 mv tmp.gif $i
done

How to convert to other color (giftrans)

You can do the same conversion using giftrans:

 giftrans -g white="#ffffcc" $i > tmp.gif