determinant.py

import copy

def determinant(liste):
    sonuc = 0

    if(len(liste) == 1):
        return liste[0][0]

    if(len(liste) == 2): #dogru
        # 2li matrisin determinanti
        return (liste[0][0] * liste[1][1]) - (liste[0][1] * liste[1][0])

    for sutun in range(len(liste)):

        # listeyi kopyala
        gecici = copy.deepcopy(liste)

        # satiri sil
        del gecici[0]

        for i in range(len(gecici)):
            # secilen elemanin sutunlarini sil
            del gecici[i][sutun]

        # kofaktor
        sonuc += determinant(gecici) * ((-1) ** (0 + sutun)) * liste[0][sutun]

    return sonuc


print determinant([[4, 9],[6, 4]])
print determinant([[5, 3, 7], [2, 4, 9], [3, 6, 4]])