New guy and programming problem

[Dieter]

(08-27-2017 11:12 PM)Paul Dale Wrote:  Yes to your other suggestions for improving accuracy, I got in what I could -- limited flash space and running out of energy justifying everything.

Life is short and RAM is full. ;-)

(08-27-2017 11:12 PM)Paul Dale Wrote:  Apart from 1 - sin(x) which doesn't have accuracy concerns that I can see

Well, for 90±5E–7° even on the 34s sin(x) rounds to 1 (in SP mode).
On a 10-digit machine this already happens for 89,9995°...90,0005°.
Even for 89°...91° three significant digits of 1 – sin(x) are lost.

(08-27-2017 11:12 PM)Paul Dale Wrote:  ...and √(x²+y²) which is present already as complex ABS.

Ah, yes, that's something I forgot. I even use complex ABS for this purpose here and there, both on the 34s and the 35s.

Dieter