Angle being re-writed on entering it

[Joe Horn]

(05-31-2016 04:45 AM)leprechaun Wrote:  Wait,

he had no chance to realize that he entered something different than he saw on dispaly and he typed in, did he?

Yes he did have a chance to realize it: by reading the owner's manual. Page 15 explains the DMS key, and explicitly states, "The HP Prime calculator will produce the best approximation in cases where an exact result is not possible." The same thing happens when entering polar points using the angle key (shift multiply); you only get the best approximate to what you key in, not exactly what you key in. Knowing things like this is one of the many benefits of reading the manual.