HP-15C display flashes 'Error 8' when it should not? - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: General Forum (/forum-4.html) +--- Thread: HP-15C display flashes 'Error 8' when it should not? (/thread-6473.html) HP-15C display flashes 'Error 8' when it should not? - Marcio - 06-29-2016 01:15 AM Hello, I noticed the 15C will flash the display if asked to find a root for the following equation, where R0 is a known and previously determined root: $\frac{2^x+2x-\pi}{x-R0}$ This is the code I used: Code: LBL A 2 x<>y y^x x<>y 2 * + pi - x<>y RCL R0 - / RTN R0 $$\approx 0.737$$ with FIX or SCI 3. Ask the calculator to solve again (I used 1 and 5 as guesses) and the display will flash with ERROR 8. Press return once to clear the display and a large number (although within the overflow bounds) will also flash. Press return again and it will stop flashing. Searching the archives, I found this thread by Dave Britten in which he reported a bug in the 15C LE for similar reasons. Interestingly enough, I can not reproduce this on the 15C emulator for android by HP. Is this a bug too or did I miss something? Thanks