17 lines
308 B
Python
17 lines
308 B
Python
import numpy as np
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# 定义向量
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A = np.array([3, 4])
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B = np.array([1, 2])
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# 1. 计算A + B
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add_result = A + B
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print("A + B =", add_result)
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# 2. 计算2 × A
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mul_result = 2 * A
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print("2 × A =", mul_result)
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# 3. 计算A的长度（模）
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norm_A = np.linalg.norm(A)
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print("A的长度（模） =", norm_A) |