Informatika2-2014/FeladatVektorok
A MathWikiből
A lap korábbi változatát látod, amilyen Rpalovics (vitalap | szerkesztései) 2014. április 4., 09:40-kor történt szerkesztése után volt.
class Vector: def __init__(self,k): self.k = k self.coordinates = [0] * k def set(self,coordinates): self.coordinates = coordinates if len(self.coordinates) != self.k: self.k = len(self.coordinates) def set(self,idx,val): if self.k > idx: self.coordinates[idx] = val def __add__(self,other): if self.k == other.k: result = Vector(self.k) for i in range(self.k): result.coordinates[i] = self.coordinates[i] + other.coordinates[i] return result else: print "vectors with different size" def __sub__(self,other): if self.k == other.k: result = Vector(self.k) for i in range(self.k): result.coordinates[i] = self.coordinates[i] - other.coordinates[i] return result else: print "vectors with different size" def __mul__(self,other): if self.k == other.k: result = 0 for i in range(self.k): result += self.coordinates[i] * other.coordinates[i] return result else: print "vectors with different size" return 0 def __repr__(self): return str(self.coordinates) vector_a = Vector(2) vector_b = Vector(2) vector_a.set(0,1) vector_a.set(1,2) vector_b.set(0,2) vector_b.set(1,3) print vector_a print vector_b vector_c = vector_a + vector_b vector_d = vector_a - vector_b vector_e = vector_a * vector_b print vector_c print vector_d print vector_e