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| # my_matrix.py | |
| class Matrix: | |
| def __init__(self, T, N): | |
| self.T = T # All fields (list) | |
| self.N = N # (n*n) | |
| self.as_2d_list = self.vec_to_mat() | |
| def vec_to_mat(self): | |
| rows, cols = self.N | |
| return [[self.T[(j*cols)+i] for i in range(cols)] for j in range(rows)] | |
| def __str__(self): | |
| type_mat = "Matrix({}*{}) = \n".format(*self.N) | |
| rows, cols = self.N | |
| vals_mat = str(self.vec_to_mat()) | |
| mat_rep = ''.join([type_mat, vals_mat]) | |
| return mat_rep.replace("],", "],\n") | |
| def __mul__(self, vec): | |
| assert len(vec) == self.N[0] | |
| ret_list = [] | |
| for i, n in enumerate(self.as_2d_list): | |
| ret_list.append(sum([vec[i]*c for c in n])) | |
| print("rawrrr, good") | |
| return tuple(ret_list) | |
| v = (1.2, 0.2, 0.6) | |
| a = Matrix(T=[1.0, 0.3, 0.3, 2.0, 4.0, 0.3, 1.0, 0.2, 0.5], N=(3,3)) | |
| print(a) | |
| print(a.as_2d_list) | |
| print(v) | |
| print(a*v) |
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