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D.15.12.17 intRank
Procedure from librarymultigrading.lib (see multigrading_lib).
- Usage:
- intRank(A); intmat A
- Purpose:
- compute the rank of the integral matrix A
by computing a hermite normalform. - Returns:
- int
LIB "multigrading.lib"; intmat A[3][4] = 1,0,1,0, 1,2,0,0, 0,0,0,0; int r = intRank(A); print(A); ==> 1 0 1 0 ==> 1 2 0 0 ==> 0 0 0 0 print(r); // Should be 2 ==> 2 // another example intmat B[2][2] = 1,2, 1,2; int d = intRank(B); print(B); ==> 1 2 ==> 1 2 print(d); // Should be 1 ==> 1 kill A, B, r, d; |