"Brilliant. Lightening fast and no adverts. The images that I want to see pop up, nothing else. Adjusting to the layout of the page takes a moment but once you are use to it the program becomes essential for those who are only interested in content, not pretty distractions."
"Powerful enough for most and a great tool for learning to program. The documentation on the website is supposed to be used as a course. This makes self learning easy. At uni I used Matlab, Mathematica and Maple and this is now my prefernece."