%matplotlib inline
import numpy as np
import sympy as sp
import matplotlib.pyplot as plt
a = 3
b = 5
a > b
False
a < b
True
a == b
False
a = 4
b = 5
if a>b:
print("a 比較大!")
else:
print("b 大於等於 a!")
b 大於等於 a!
a = 9
b = 9
if a>b:
print("a 比較大!")
elif a==b:
print("a 和 b 一樣大!")
else:
print("b 比較大!")
a 和 b 一樣大!
egg = np.random.rand(10)
egg
array([0.81928556, 0.88179719, 0.82389712, 0.36168347, 0.58358157, 0.01245951, 0.19094201, 0.61684016, 0.08913938, 0.54429414])
spam = np.random.randn(10000)
spam.mean()
0.003729701478132634
spam.std()
0.9938378049499542
np.random.randint(1, 10, 10)
array([8, 7, 7, 9, 6, 6, 1, 8, 3, 6])
a = np.random.randint(1, 1000001)
b = np.random.randint(1, 1000001)
print(f"(a,b) = ({a},{b})")
if a>b:
print("a 比較大!")
elif a==b:
print("a 和 b 一樣大!")
else:
print("b 比較大!")
(a,b) = (34607,436702) b 比較大!
A = list(range(1, 6))
B = list(range(1,6))
#### AxB
egg = [(a, b) for a in A for b in B]
egg
[(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (2, 1), (2, 2), (2, 3), (2, 4), (2, 5), (3, 1), (3, 2), (3, 3), (3, 4), (3, 5), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (7, 1), (7, 2), (7, 3), (7, 4), (7, 5), (8, 1), (8, 2), (8, 3), (8, 4), (8, 5), (9, 1), (9, 2), (9, 3), (9, 4), (9, 5), (10, 1), (10, 2), (10, 3), (10, 4), (10, 5)]