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vector.py
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vector.py
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class Vector:
def __init__(self, vals):
self.vals = tuple(vals)
def __add__(self, v):
if len(v) != len(self):
raise Exception("Vector lengths should be equal!")
return Vector(tuple(v1 + v2 for v1, v2 in zip(self.vals, v.vals)))
def __neg__(self):
return Vector(tuple(-v for v in self.vals))
def __sub__(self, v):
return self + (-v)
def __mul__(self, v):
if type(v) is Vector:
return Vector(tuple(v1 * v2 for v1, v2 in zip(self.vals, v.vals)))
else:
return Vector(tuple(val * v for val in self.vals))
def dot(self, v):
if len(v) != len(self):
raise Exception("Vector lengths should be equal!")
return sum(tuple(v1 * v2 for v1, v2 in zip(self.vals, v.vals)))
def __getitem__(self, index):
return self.vals[index]
def __len__(self):
return len(self.vals)
def __str__(self):
return str(self.vals)