version 1.4, 2010/08/06 15:32:47
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version 1.8, 2011/07/22 07:38:18
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* A * x = s*b, A**T * x = s*b, or A**H * x = s*b, |
* A * x = s*b, A**T * x = s*b, or A**H * x = s*b, |
* |
* |
* with scaling to prevent overflow, where A is an upper or lower |
* with scaling to prevent overflow, where A is an upper or lower |
* triangular band matrix. Here A' denotes the transpose of A, x and b |
* triangular band matrix. Here A**T denotes the transpose of A, x and b |
* are n-element vectors, and s is a scaling factor, usually less than |
* are n-element vectors, and s is a scaling factor, usually less than |
* or equal to 1, chosen so that the components of x will be less than |
* or equal to 1, chosen so that the components of x will be less than |
* the overflow threshold. If the unscaled problem will not cause |
* the overflow threshold. If the unscaled problem will not cause |