“The Use of Cone Projections and Quadratic Programming in Estimation of Constrained Regression”. 2025. Journal of Al-Rafidain University College For Sciences ( Print ISSN: 1681-6870 ,Online ISSN: 2790-2293 ) 57 (1): 136-43. https://doi.org/10.55562/jrucs.v57i1.12.