16 lines
283 B
Python
16 lines
283 B
Python
import math
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A = [3, 4]
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B = [1, 2]
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# 1. A + B
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add_result = [a + b for a, b in zip(A, B)]
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print("A + B =", add_result)
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# 2. 2 × A
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scalar_result = [2 * a for a in A]
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print("2 × A =", scalar_result)
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# 3. A的长度
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norm = math.sqrt(sum(a**2 for a in A))
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print("A的长度 =", norm) |