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从 NAG Library 的帮助里可以看到: c06laf 是用于反拉普拉斯变换。
IFAIL = 4
The required accuracy cannot be obtained. It is possible that ALPHAB is less than
Alternatively, the problem may be especially difficult. Try increasing TFAC, ALPHAB or both.
意思是,需要的精度无法达到。可能是 AlphAB 小于 alpha
试着增加 TFAC ALPHAB 参数,或者两个都增加。 |
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