[OK] kappa_1 = 0, kappa_2 = 1
[OK] kappa_3 = u - v
[OK] kappa_4 = u^2 + v^2 - 4
[OK] kappa_5 = (u - v)(u^2 + v^2 - 10)
[OK] kappa_6 = w^2 - 26 w + 64
[OK] LP code: k3 = theta/tau
[OK] LP code: k4 = (1-6tau^2)/tau^2
[OK] LP code: k5 = theta(1-12tau^2)/tau^3
[OK] LP code: k6 = (1-30tau^2+120tau^4)/tau^4
[OK] C0.2 moments EM^3..EM^6 (general p2; |beta|=1 gives RQ-A's formulas), 30 exact random cases
[OK] C0.3 power-sum inequalities on 2000 exact random vectors
[OK] C0.4 E|a chi1 + b chi2| = 2 tau (1-q)(a+b) when both middle atoms are >= 0
[OK] C0.4 middle atoms >= 0 <=> v/u <= b/a <= u/v, i.e. q/(1-q) <= b/a <= (1-q)/q

ALL OK
