定义一个矩阵初等行变换的类
class rowTransformation():
array = ([[],[]])
def __init__(self,array):
self.array = array
def __mul__(self, other):
pass
# 交换矩阵的两行
def exchange_two_lines(self,x,y):
a = self.array[x-1:x].copy()
self.array[x-1:x] = self.array[y-1:y]
self.array[y-1:y] = a
return self.array
# 以k不等于0乘以矩阵中的某x行
def multiply(k,x,self):
self.array[x-1:x] = k*self.array[x-1:x]
return self.array
# 把x行所有元的k倍加到另y行上去
def k_mul_arr_add_arr(self,k,x,y):
self.array[y-1:y] += k*self.array[x-1:x]
return self.array
定义一个初等列变换的类
# 封装一个初等列变换类
class colTransformation():
array = ([[],[]])
def __init__(self, array):
self.array = array
def __mul__(self, other):
pass
# 交换矩阵的两列
def exchange_two_lines(self, x, y):
a = self.array[:, x-1:x].copy()
self.array[:,