一个2*2的矩阵(a11 a12)*(x1 =(b1x2 b2 (a21 a22) x3) b3)为什么要用列主元消去法要用到误差的传递,假设a12的误差为epsilon,这个误差在下一句话里面变成了多少了呢?刚学数值分析,线性代数有学的很烂,
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![一个2*2的矩阵(a11 a12)*(x1 =(b1x2 b2 (a21 a22) x3) b3)为什么要用列主元消去法要用到误差的传递,假设a12的误差为epsilon,这个误差在下一句话里面变成了多少了呢?刚学数值分析,线性代数有学的很烂,](/uploads/image/z/8567115-51-5.jpg?t=%E4%B8%80%E4%B8%AA2%2A2%E7%9A%84%E7%9F%A9%E9%98%B5%28a11+a12%29%2A%EF%BC%88x1+%3D%28b1x2+b2+%28a21+a22%29+x3%29+b3%29%E4%B8%BA%E4%BB%80%E4%B9%88%E8%A6%81%E7%94%A8%E5%88%97%E4%B8%BB%E5%85%83%E6%B6%88%E5%8E%BB%E6%B3%95%E8%A6%81%E7%94%A8%E5%88%B0%E8%AF%AF%E5%B7%AE%E7%9A%84%E4%BC%A0%E9%80%92%2C%E5%81%87%E8%AE%BEa12%E7%9A%84%E8%AF%AF%E5%B7%AE%E4%B8%BAepsilon%2C%E8%BF%99%E4%B8%AA%E8%AF%AF%E5%B7%AE%E5%9C%A8%E4%B8%8B%E4%B8%80%E5%8F%A5%E8%AF%9D%E9%87%8C%E9%9D%A2%E5%8F%98%E6%88%90%E4%BA%86%E5%A4%9A%E5%B0%91%E4%BA%86%E5%91%A2%3F%E5%88%9A%E5%AD%A6%E6%95%B0%E5%80%BC%E5%88%86%E6%9E%90%2C%E7%BA%BF%E6%80%A7%E4%BB%A3%E6%95%B0%E6%9C%89%E5%AD%A6%E7%9A%84%E5%BE%88%E7%83%82%2C)
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