from:http://www.mathworks.com/help/toolbox/fixedpoint/ref/mpower.html
a1= [-1.4 0.8;-2.4 1.8];
[VN,DN] = eig(a1,'nobalance')
2010年10月14日 星期四
MatLab -- find eigenvector and eigenvalue
from:http://www.mathworks.com/help/toolbox/fixedpoint/ref/mpower.html
a1= [-1.4 0.8;-2.4 1.8];
[VN,DN] = eig(a1,'nobalance')
a1= [-1.4 0.8;-2.4 1.8];
[VN,DN] = eig(a1,'nobalance')
2010年10月6日 星期三
C++ file read
from:http://www.cplusplus.com/forum/beginner/8388/
#include
#include
using namespace std;
int main()
{
ifstream in("test", ios::in | ios::binary);
if(!in) {
cout << "Cannot open input file.\n";
return 1;
}
double num;
char str[80];
in.read((char *) &num, sizeof(double));
in.read(str, 14);
str[14] = '\0'; // null terminate str
cout << num << ' ' << str;
in.close();
return 0;
}
#include
#include
using namespace std;
int main()
{
ifstream in("test", ios::in | ios::binary);
if(!in) {
cout << "Cannot open input file.\n";
return 1;
}
double num;
char str[80];
in.read((char *) &num, sizeof(double));
in.read(str, 14);
str[14] = '\0'; // null terminate str
cout << num << ' ' << str;
in.close();
return 0;
}
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