题解 | 实现向量到直线的正交投影

import numpy as np
def orthogonal_projection(v, L):
    v_np=np.array(v)
    l_np=np.array(L)
    dot_product=np.dot(v_np,l_np)
    projection=dot_product/(np.dot(l_np,l_np))*l_np
    return np.round(projection,3).tolist()
if __name__ == "__main__":
    v = eval(input())
    L = eval(input())
    print(orthogonal_projection(v, L))