matlab线性方程组计算X1+X2-5X3-X4+X5=98X1+5X2-X3+4X5=23X1-7X2-5X3-X4+X5=42X1+X2+8X3+3X4-X5=-86X2+2X3+7X4-2X5=15

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matlab线性方程组计算X1+X2-5X3-X4+X5=98X1+5X2-X3+4X5=23X1-7X2-5X3-X4+X5=42X1+X2+8X3+3X4-X5=-86X2+2X3+7X4-2X5=15

matlab线性方程组计算X1+X2-5X3-X4+X5=98X1+5X2-X3+4X5=23X1-7X2-5X3-X4+X5=42X1+X2+8X3+3X4-X5=-86X2+2X3+7X4-2X5=15
matlab线性方程组计算
X1+X2-5X3-X4+X5=9
8X1+5X2-X3+4X5=2
3X1-7X2-5X3-X4+X5=4
2X1+X2+8X3+3X4-X5=-8
6X2+2X3+7X4-2X5=15

matlab线性方程组计算X1+X2-5X3-X4+X5=98X1+5X2-X3+4X5=23X1-7X2-5X3-X4+X5=42X1+X2+8X3+3X4-X5=-86X2+2X3+7X4-2X5=15
>> A=[1,1,-5,-1,1;8,5,-1,0,4;3,-7,-5,-1,1;2,1,8,3,-1;0,6,2,7,-2];
>> b=[9;2;4;-8;15];
>> x=sym(A)\sym(b)
>> xx=A\b
得到结果:
x =
[ 2509/1670]
[ 1671/1670]
[ -3853/1670]
[ 118/167]
[ -1447/334]
近似值
xx =
1.5024
1.0006
-2.3072
0.7066
-4.3323

matlab线性方程组计算速回2X1+X2-5X3+X4=13X1-5X2+7X4=-92X2+X3-X4=6X1+6X2-X3-4X4=0麻烦用matlab计算占帖过来~速用啊 matlab线性方程组计算X1+X2-5X3-X4+X5=98X1+5X2-X3+4X5=23X1-7X2-5X3-X4+X5=42X1+X2+8X3+3X4-X5=-86X2+2X3+7X4-2X5=15 matlab解线性方程组请问,13x1=2x1+x2+6x3+4x413x2=4x1+3x2+2x3+3x413x3=2x1+5x2+3x3+3x413x4=5x1+4x2+2x3+3x4这个方程组用matlab应该怎样求解x1 x2 x3 x4 麻烦告之下代码, 矩阵线性方程组2x1-x2+3x3=3 3x1+x2-5x3=0 4x1-x2+x3=3 x1+3x2-13x3=-6用消元法怎么计算呢.请需要帮助. 求解线性方程组 X1+X2+X3=6 2X1+3X2+X3=11 X1-X2+2X3=5 解线性方程组 x1-x2-x3=2 x1+x2+4x3=0 3x1+5x3=3 线性方程组{2x1-x2-2x3=λx1{5x1-3x2-3x3=λx2{-x1+2x3=-λx3有非零解,则λ= 有关用matlab计算最优解1.G(x)=60x1-2.5x1^2-5x1x2其中10x1+1.2x2 线性方程组的有解和一般解问题2x1-3x2+4x3-5x4=1x1-x2-2x4=3x1-2x2+4x3-3x4=λ问λ为何值时,线性方程组有解,并求一般解.回xiaoyuer02229 这些当年都会啦 专攻证明 计算反而薄弱了而且是2001年学的 谁还记 利用初等行变换求解线性方程组 2X1-3X2=5 X1+5X2=-4(要过程,) matlab编写程序 高斯消元求解线性方程组3X1-0.1X2-0.2X3=7.85;0.1X1+7X2-0.3X3=-19.3;0.3X1-0.2X2+10X3=71.4 ; 解线性方程组x1+x2+x3+x4=2;2x1+3x2+4x3+3x4=5;x1+3x2+5x3+3x4=4 解下列线性方程组 x1+2x2+3x3=1 2x1+2x2+5x3=2 3x1+5x2+x3=3 求解线性方程组X1-X2+X4=2,X1-2X2+X3+4X4=3,2X1-3X2+X3+5X4=5 求线性方程组(X1-X2+X4,X1-2X2+X3+4X4=3,2X1-3X2+X3+5X4=5)的一般解, 解线性方程组 X1+2X2+3X3=4 3X1+5X2+7X3=9 5X1+8X2+11X3=14 解线性方程组 X1+2X2+3X3=4 3X1+5X2+7X3=9 5X1+8X2+11X3=14 求解线性方程组-x1+x2+2x3=1;x1-x2+x3=2;5x1-5x2-4x3=1