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testan se a matriz é triangular ou não
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# -*- coding: utf-8 -*- | |
u"""verificando se uma matriz quadrada é triangular superior ou inferior.""" | |
mat2 = ([0, 2, 3], [0, 1, 3], [0, 0, 3]) | |
mat2 = ([0, 0, 0], [1, 1, 0], [1, 2, 0]) | |
mat2 = ([1, 1, 1], [1, 1, 1], [1, 1, 1]) | |
mat = ([0, 0, 0], [0, 0, 0], [0, 0, 0]) | |
# testando superior | |
triangular = [] | |
for lin in mat: | |
indice = mat.index(lin) | |
a_lin = lin[indice+1:] | |
qt_alin = len(a_lin) | |
b_lin = lin[:indice] | |
qt_blin = len(b_lin) | |
if qt_alin > 0: | |
if a_lin.count(0) == qt_alin: | |
if True not in triangular: | |
triangular.append(True) | |
else: | |
if False not in triangular: | |
triangular.append(False) | |
if qt_blin > 0: | |
if b_lin.count(0) != 0: | |
if True not in triangular: | |
triangular.append(True) | |
else: | |
if False not in triangular: | |
triangular.append(False) | |
if triangular == [False, True]: | |
print('superior') | |
if triangular == [True, False]: | |
print('inferior') | |
if triangular == [False] or triangular == [True]: | |
print('Não é triangular') |
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