I feel a bit stupid asking this to be honest.. Here goes anyway.. I'm an 'early learner' regards math (certainly not early of years though :) and have recently taken a very keen interest in the physical sciences and wish to improve my math skills in order to allow me to explore ideas in this area. I have been looking for a PC based math package 'of some description?'that will allow me to interactively try out ideas and will give good visual feedback, graphing etc; I'd also like this 'study tool' to be comprehensive enough that it will not hinder me (probably through my clumsiness in honesty) and that has a very intuitive interface (ie, not overly strict with syntax and rules).