jsmath-fonts software package provides raster fonts for jsMath, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install jsmath-fonts
jsmath-fonts is installed in your system.
Make ensure the jsmath-fonts package were installed using the commands given below,
$ sudo dpkg-query -l | grep jsmath-fonts *
You will get with jsmath-fonts package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Fonts |
| Package | jsmath-fonts |
| Version | 1.3-3 |
| Description | raster fonts for jsMath |
| Sub Section | Fonts |