مدخل إلى numpy

import numpy as np

list_version = [1, 2]
array_version = np.array([1, 2])

print("قائمة × 3 :", list_version * 3)
print("مصفوفة × 3:", array_version * 3)
print()
print("دمج القوائم :", [1, 2] + [3, 4])
print("جمع المصفوفات:", np.array([1, 2]) + np.array([3, 4]))

import numpy as np

v = np.array([1, -2, 0, 5])
M = np.array([
    [8, 0, -1],
    [-2, -3, 1],
])

print("v:", v, "| الشكل:", v.shape, "| النوع:", v.dtype)
print("M الشكل:", M.shape, "| عدد العناصر:", M.size)
print("M المنقولة:\n", M.T)
print("مصفوفة الهوية:\n", np.eye(3))
print("أصفار:", np.zeros(4), "| آحاد:", np.ones(3))

import numpy as np
from math import sqrt

u = [-3, -2, 0, -1, 4]
v = [-1, -1, 2, -3, 5]

manual_sum = [u[i] + v[i] for i in range(len(u))]
manual_dot = sum(u[i] * v[i] for i in range(len(u)))
manual_len = sqrt(sum(e ** 2 for e in u))

nu, nv = np.array(u), np.array(v)

print("الجمع  :", manual_sum, "|", nu + nv)
print("القياسي:", manual_dot, "|", np.dot(nu, nv))
print("الطول  :", round(manual_len, 6), "|", round(float(np.linalg.norm(nu)), 6))