第七题
![Mathematica入门习题[7]–解线性方程组](https://img.mathpretty.com/snipaste_20170912_215252.png?imageView2/0/q/75|watermark/2/text/5YWz5rOo5YWs5LyX5Y-377ya5paH6Im65pWw5a2m5ZCb/font/5b6u6L2v6ZuF6buR/fontsize/540/fill/IzAwMDAwMA==/dissolve/100/gravity/SouthEast/dx/10/dy/10|imageslim)
a = {{1/2, 1/3, 1/4}, {1/3, 1/4, 1/5}, {1/4, 1/5, 1/6}};
b = {x1, x2, x3};
c = {.95, .67, .52};
a.b
Solve[a.b == c, {x1, x2, x3}]
![Mathematica入门习题[7]–解线性方程组](https://img.mathpretty.com/snipaste_20170912_220354.png?imageView2/0/q/75|watermark/2/text/5YWz5rOo5YWs5LyX5Y-377ya5paH6Im65pWw5a2m5ZCb/font/5b6u6L2v6ZuF6buR/fontsize/540/fill/IzAwMDAwMA==/dissolve/100/gravity/SouthEast/dx/10/dy/10|imageslim)
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![Mathematica入门习题[7]–解线性方程组](https://img.mathpretty.com/snipaste_20170912_215252.png?imageView2/0/q/75|watermark/2/text/5YWz5rOo5YWs5LyX5Y-377ya5paH6Im65pWw5a2m5ZCb/font/5b6u6L2v6ZuF6buR/fontsize/540/fill/IzAwMDAwMA==/dissolve/100/gravity/SouthEast/dx/10/dy/10|imageslim)
a = {{1/2, 1/3, 1/4}, {1/3, 1/4, 1/5}, {1/4, 1/5, 1/6}};
b = {x1, x2, x3};
c = {.95, .67, .52};
a.b
Solve[a.b == c, {x1, x2, x3}]
![Mathematica入门习题[7]–解线性方程组](https://img.mathpretty.com/snipaste_20170912_220354.png?imageView2/0/q/75|watermark/2/text/5YWz5rOo5YWs5LyX5Y-377ya5paH6Im65pWw5a2m5ZCb/font/5b6u6L2v6ZuF6buR/fontsize/540/fill/IzAwMDAwMA==/dissolve/100/gravity/SouthEast/dx/10/dy/10|imageslim)
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2020年1月30日 下午5:38 1F
是不是后面可以用 /.让这几个解在接下来的运算中被使用?