Introduction - If you have any usage issues, please Google them yourself
Numerical Analysis-out election PCA solving equations// n integer variables. Equations of bands// a double precision real-dimensional array, the volume of n* n. The storage equation coefficient matrix, the return would be compromised.// B double precision real-one-dimensional arrays, length n, storage equations subguadratic constant vector; Return to the solution of the equations vector.// This function returns integer values signs. If the return value of 0 signs, the group said the original equation coefficient matrix, the output information "fail"; if the return value is not a sign of 0, then return to normal.