The Samsung Note3 (and presumably later versions) come with S Note (which I just found is also available for windows[1]) -- and does a decent job of translating hand-drawn equations (eg sum over x=0 to infinity for 1&#x2F;x). Not sure about the pc version (yet). Might be worth looking at for those that have a windows tablet&#x2F;device with stylus input.<p>[ed: Doesn&#x27;t appear to be a feature of the windows&#x2F;desktop app :-( ]<p>[1] <a href="http:&#x2F;&#x2F;www.samsung.com&#x2F;uk&#x2F;apps&#x2F;mobile&#x2F;snote&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.samsung.com&#x2F;uk&#x2F;apps&#x2F;mobile&#x2F;snote&#x2F;</a>