[VA] "Introducing APRIL !" microchallenge

[Albert Chan]

J-F Garnier Wrote:Fantastic, amazing !

153 >DEG :
HP41C: 8766.254266
HP33E: 8766.254265

0.123456987 >DEG :
HP41C: 7.073564307
HP33E: 7.073564306

Do post them !
(and how you found them)

Thanks to J-F Garnier, confirmation from actual machine.

I found them in lua, working in integers.
This avoided dec->bin conversion errors.
2nd found is actually tested from 123456987 radians

Constant PI/2, PI/4 still use fractions, but dec->bin conversion error is tiny, under 0.14 ulp

float(1.570796326795) = 1.57079632679500003078 ...
float(0.7853981633975) = 0.78539816339750001539 ...

There may also be errors of truncation to 13 digits.
(also, possible rounding to 10 digits error, since I don't know what rules for half-way case)

Actual confirmation from physical decimal machines may be needed.