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900Implied Unit Count 5Annual charging sessions are modeled as units * 330 events per unit per active day * 96 active days. If the annual total is 2851200, how many units are implied?脑筋急转弯困难数值题未尝试免费1377Implied Notional from Fee 2A desk fee of 31250 equals 12.5 basis points of notional. What is the notional?脑筋急转弯简单数值题未尝试免费1381Two-Leg Basis-Point Net 1A book has two PnL legs on the same notional 12000000: one contributes 18 bp and the other contributes -7 bp. What is the net dollar PnL?脑筋急转弯简单数值题未尝试免费1385Two-Leg Basis-Point Net 5A book has two PnL legs on the same notional 15000000: one contributes 5 bp and the other contributes 8 bp. What is the net dollar PnL?脑筋急转弯困难数值题未尝试免费1386Blended Fill Price 1A trader buys 1200 units at 99.8 and 800 units at 100.25. What is the weighted-average fill price?脑筋急转弯简单数值题未尝试免费1391Percent-to-Dollar Conversion 1What is 7.5% of 3200000?脑筋急转弯简单数值题未尝试免费1526Determinant After a Rank-One Overlay 1An invertible matrix A has det(A) = 12. For vectors u and v, suppose v T A (-1) u = 1/2. What is det(A + u v T)?数学简单数值题未尝试免费1527Stress-Adjusted Determinant 2An invertible matrix A has det(A) = 5. For vectors u and v, suppose v T A (-1) u = -3/5. What is det(A + u v T)?数学简单数值题未尝试免费1531Residual-Space Projection Rank 1P is a projection on R 8 with rank 3. What is rank(I - P)?数学简单数值题未尝试免费1541Sherman-Morrison Vector Update A 1Suppose A is invertible, A (-1)b = [3, -1] T, A (-1)u = [1, 2] T, v T A (-1)b = 2, and v T A (-1)u = 1/2. What is (A + u v T) (-1) b?数学简单数值题未尝试免费1542Sherman-Morrison Vector Update B 2Suppose A is invertible, A (-1)b = [2, 4] T, A (-1)u = [1, -1] T, v T A (-1)b = -3, and v T A (-1)u = 1/4. What is (A + u v T) (-1) b?数学中等数值题未尝试免费1543Sherman-Morrison Vector Update C 3Suppose A is invertible, A (-1)b = [5, 0] T, A (-1)u = [2, 1] T, v T A (-1)b = 1, and v T A (-1)u = -1/2. What is (A + u v T) (-1) b?数学中等essay未尝试免费1545Sherman-Morrison Failure TestWhy does the Sherman-Morrison formula break down exactly when 1 + v T A (-1)u = 0?数学困难数值题未尝试面试订阅1546Equal-Factor Determinant 1What is det(3 I + 2 11 T) as an n=4 dimensional matrix?数学简单数值题未尝试免费1547Broadcast Matrix Determinant 2What is det(5 I + -1 11 T) as an n=3 dimensional matrix?数学简单数值题未尝试免费1552Centered Overlay Spectrum 2A = 3I + -111 T in dimension n=5. What are its eigenvalues?数学简单数值题未尝试免费1558Diagonalizable Shock Propagation 3A diagonalizable matrix satisfies Au 1 = 3u 1 and Au 2 = 6u 2. If v = -1u 1 + 2u 2, what is A 2v?数学中等数值题未尝试免费1566Trace-and-Square Inference 1A 2x2 matrix has eigenvalues 4 and lambda. Its trace is 10. What is lambda?数学简单数值题未尝试免费1571Rank-One Spectrum Description 1A rank-one symmetric matrix has eigenvalue 7 along the ones direction. What are the remaining eigenvalues along all vectors orthogonal to 1?数学简单数值题未尝试免费2546Legal Threshold Count With a Leaf-Size Floor 15A sorted feature has 31 observations, and each child leaf must contain at least 6 observations. How many legal split positions are there?机器学习简单数值题未尝试免费