From Danijel Gorupec:
This product is basically an Equation Editor. However it is not centered over one single equation but you can write your mathematical text over several pages. Inside your mathematical document, you can copy equations and expressions easily by mouse click. You can also make simple drawings or sketches. Added function plotter and symbolic calculator can assist you... Engineers can use it to make quick informal calculations; students can use it as a real-time math note-taking tool; math teachers can prepare electronic exams to be solved by their students.
What's new in this version:
Version 1.91 build 2 is a bug fixing release.