really interesting. I may have overlooked IPython a bit (I just thought Jupyter was its improved version). For the moment, maybe like you, I prerpocess the data

really interesting. I may have overlooked IPython a bit (I just thought Jupyter was its improved version). For the moment, maybe like you, I prerpocess the data (which takes minutes) into numpy array which then take seconds to load. But once I add imports, everything takes about 5 or 6 seconds to load everything I need. So Jupyter remains a good idea. Moreover, I love (and actually need) to mix math and text, so markdown+latex maths is really a great combo. I dont' know if one can do that in IPython, I'll sure look!