
encomer
Grateful user of DrRacket
and particularly of the Scribble
language and the scribble-math
package.
For Scribble documents, I like very much the option to render mathematical notes in HTML as well as in PDF format.
The Racket use for the generation of quizzes and assessment tools in mathematics, is an important area of interest, especially in conjuntion with the impressive plot and math packages.