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int main() { int a = 1; int b = a++; cout << a << b << endl; return 0; } 输出2 1 #include<iostream> using namespace std; int main() { int a = 1; int b = 阅读全文
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GMRES Iterative Solver This linear system solver uses the restarted GMRES (generalized minimum residual) method (see Ref. 9 and Ref. 10). This is an i 阅读全文
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呜呜呜,我咋能遇到这么多坑! A has large complex eigenpairs,BiCGSTAB is likely to stagnate, as confirmed by numerical experiments. 就是如果矩阵有很多复数特征值,BICGSTAB可能迭代不动了. O 阅读全文