R. W. Farebrother, Algorithm AS 256: The Distribution of a Quadratic Form in Normal Variables, Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 39, No. 2 (1990), pp. 294-309
No takes yet. Share an insight, caveat, or question.
R. W. Farebrother (1990) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: