Stock 1	Stock 2	Stock 3	Stock 4	Stock 5	Stock 6	Stock 7	Stock 8	Stock 9	Stock 10
18.5962	10.2866	13.7194	5.9854	28.9687	8.9713	44.2491	4.4764	18.7108	11.7426
18.4005	10.1251	13.3409	5.8613	28.4846	8.8149	43.5339	4.4042	18.4796	11.5496
18.5241	10.0343	13.2488	5.789	28.1058	8.7836	42.5284	4.4042	18.0276	11.4176
18.3079	9.8526	13.3409	5.6753	27.2114	8.6688	41.0048	4.3424	17.1656	11.1433
18.2461	9.7314	13.3204	5.6029	26.8747	8.6897	40.9633	4.2805	17.1866	11.1129
18.2255	9.6406	13.0646	5.5099	26.4643	8.5332	40.4865	4.2289	16.3457	11.0011
18.1225	9.7112	13.0544	5.4892	26.3591	8.5958	40.2688	4.2701	15.7781	11.0417
18.2564	9.792	13.2181	5.6546	26.78	8.6584	41.0151	4.002	15.5258	11.2754
18.277	9.6103	12.9828	5.4892	26.3591	8.5228	40.2377	3.9195	15.6414	10.9199
18.1843	9.4488	12.8805	5.4272	26.2117	8.5749	39.9371	3.9917	15.8411	10.8183
17.9372	9.3478	13.0033	5.3548	25.6856	8.481	39.6573	3.9504	15.3786	10.798
18.2049	9.368	13.3613	5.4478	25.875	8.6167	40.1237	3.8679	15.4837	10.9199
18.3388	9.368	12.9828	5.3651	24.7281	8.5958	40.217	3.8576	14.9371	10.8691
18.73	9.5396	13.2693	5.4065	24.3177	8.5332	40.5798	3.8473	14.9266	11.0417
18.7918	9.8828	13.2488	5.4478	24.5702	8.5958	41.098	3.8576	16.0409	11.1738

Describe the method mathematically to determine the optimal tangential portfolio when short selling isn't allowed. Suppose risk-free asset is available and the risk-free rate=1.7%. With weights stocks 1-10 of weight 0.07, 0.09, 0.11, 0.13, 0.15, 0.17, 0.19, 0.03, 0.04, 0.02 respectively