在第一个cvGEMM那里就报错了,控制台也没提示错误地方
float x, y;
float a1, a2, a3, a4, a5, b1;
float data[10][5];
float dab[10];
CvMat* curve_p = cvCreateMat(5,1,CV_32FC1);
CvMat* A = cvCreateMat(n, 5, CV_32FC1);
CvMat* b = cvCreateMat(n, 1, CV_32FC1);
//获取十个数据
for (int i = 1; i <= 10; i++)
{
int pt = (20 - 1)*i / 10;
x = 2;
y = 6;
a1 = x*x - y*y;
a2 = x*y;
a3 = x;
a4 = y;
a5 = 1;
b1 = -y*y;
data[i - 1][0] = a1;
data[i - 1][1] = a2;
data[i - 1][2] = a3;
data[i - 1][3] = a4;
data[i - 1][4] = a5;
dab[i - 1] = b1;
}
cvSetData(A, data, A->step);
cvSetData(b, dab, b->step);
CvMat *E1, *E2, *E3;
E1 = cvCreateMat(5, 5, CV_32FC1);
E2 = cvCreateMat(5, 5, CV_32FC1);
E3 = cvCreateMat(5, n, CV_32FC1);
cvGEMM(A, A, 1, NULL, 0, E1, CV_GEMM_A_T);
cvInvert(E1, E2, 0);
cvGEMM(E2, A, 1, NULL, 0, E3, CV_GEMM_B_T);
cvGEMM(E3, b, 1, NULL, 0, curve_p);
cvReleaseMat(&A);
cvReleaseMat(&b);
cvReleaseMat(&E1);
cvReleaseMat(&E2);
cvReleaseMat(&E3);