Python common function library

math library

Simple addition, subtraction, multiplication and division can be used directly, but when you want to use the operation of taking the absolute value of the square root, you need to introduce python's mathematical function library

import math

import math
a = 5
print(math.sqrt(a))

random number

import random
i = 1
while(i < 5):
    i = i+1
    print("the random function")
    print(random.random())#random函数随机产生0-1的任意实数
    print("the uniform function")
    print(random.uniform(1, 5))#uniform函数随机产生自定义范围内的函数