Well, all done, geometry exercise too but have a couple of quibbles. 'Predicting the ascent of rocket with no latitude'. I can see that the latitude has gone from the rising rocket, but where is it suggested that the 'l' should then be stuck on the end?
'Band leader with curt experience....' While the soprano use is common, to have two individual letters as abbreviations seems a bit lazy. Every letter in the alphabet is an abbreviation of something, you could fill a whole grid like that.
Anyone else get sidetracked by 'apse' for 'Bottom point after prominent....'? At that point I was convinced that the setter was keen on single letter constructions. Also got delayed by using the plural of the common spelling for the first across clue but can only make sense of the correct one if goon is actually go on. And finally, I was looking for euclidean for the omitted letters for a while.