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让下面的矩阵A(15,15) 第1行:0.75400.31800.21420.30240.18710.81460.06500.26240.37510.4784 0.07180.35510.98760.35420.7777 第2行:0.07660.56800.67530.26240.72230.73560.19390.09560.87600.8937 0.80270.45460.25480.03690.3925 行3:0.45950.95550.26420.71420.81880.19300.93000.70770.14330.9851 0.01340.95390.64150.20190.5993 行4:0.19520.53350.97920.15070.21950.94470.35940.25800.09670.8004 0.83920.91420.75390.55130.1892 第5行:0.51300.09280.26610.40790.88110.24260.90070.84440.43120.1299 0.54660.81510.18170.34330.1248 第6行:0.55090.30750.43730.08490.89120.17840.46380.55050.82170.0200 0.90960.85770.70660.23440.3007 第7行:0.19990.65410.42910.61810.20380.60430.11610.11520.86630.5654 0.06960.58670.90740.14920.0743 第8行:0.21050.39870.79810.49320.86670.27380.07930.95540.24390.1850 0.59780.64450.32730.75020.3131 第9行:0.82290.57530.51860.54360.04480.29480.30580.16790.20260.7747 0.66850.11360.67170.95140.0323 第10行:0.62730.27680.90610.26460.82420.00550.00480.48450.02200.7470 0.98400.67360.79410.57420.4022 行11:0.94610.93100.53540.69850.12290.66960.57750.04300.96020.9198 0.70060.16170.00010.75820.7533 第12行:0.26930.50400.35650.49500.85530.03180.01330.36720.04270.0045 0.35080.83210.47710.32660.7360 行13:0.44370.62640.50970.72910.61050.13670.14120.46900.71150.4645 0.81840.75150.67420.03650.3628 第14行:0.63970.18780.21190.78830.05010.15410.49490.52440.76790.8171 0.99500.90850.55690.31970.5292 第15行:0.76470.93030.44070.65080.30740.45320.47110.03320.84160.0492 0.87070.05530.13960.74510.0954 构造矩阵B(9,9)包含了A矩阵里以下的行和列: 行2 4 5 6 10 11 13 14 15 列: 3 4 7 8 9 11 12 13 15 写出矩阵B的迹数(矩阵B的主对角线(从左上方至右下方的对角线)上各个元素的总和)保留4位小数点 =========== 矩阵B的迹数 =| | =========== 计算矩阵C = B**9(**表示矩阵的一般强度) 写出矩阵C对角线里元素的整数部分,和矩阵C.的迹数的整数部分。 | c(1,1)| c(2,2)| c(3,3)| c(4,4)| c(5,5)| c(6,6)| c(7,7)| c(8,8)| c(9,9)|
=========== 矩阵C 的迹数=| | ===========
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