python计算无穷大的实例

# 定义正无穷大
positive_infinity = float('inf')
print(positive_infinity)  # 输出：inf

# 定义负无穷大
negative_infinity = float('-inf')
print(negative_infinity)  # 输出：-inf

# 无穷大加一还是无穷大
print(positive_infinity + 1)  # 输出：inf

# 无穷大减一还是无穷大
print(positive_infinity - 1)  # 输出：inf

# 无穷大乘以无穷大还是无穷大
print(positive_infinity * positive_infinity)  # 输出：inf

# 无穷大除以无穷大是NaN（Not a Number）
print(positive_infinity / positive_infinity)  # 输出：nan

# 无穷大除以非零的有限数还是无穷大
print(positive_infinity / 2)  # 输出：inf

# 无穷大除以零会产生无限大的异常
try:
    print(positive_infinity / 0)
except ZeroDivisionError:
    print("Cannot divide by zero!")

while True:
    user_input = input("请输入一些内容，或者输入'exit'来停止：")
    if user_input == 'exit':
        break
    print(f"你输入了：{user_input}")

step_size = float('inf')
gradient = ...  # 计算梯度
update = -step_size * gradient

class InfinitePiece:
    def __init__(self):
        self.value = float('inf')

total = 0
count = 0
for value in data:
    total += value
    count += 1
average = total / count if count != 0 else float('inf')

import matplotlib.pyplot as plt

x = [1, 2, 3, 4, 5]
y = [2, float('inf'), 4, 6, 8]

plt.plot(x, y)
plt.show()

class ChessBoard:
    def __init__(self, size):
        self.size = size
        self.board = [[0] * size for _ in range(size)]
        self.board[0][0] = float('inf')  # 设置棋盘边界为无穷大