使用二分法(Bisection Method)求平方根. def sqrtBI(x, epsilon): assert x>0, 'X must be non-nagtive, not ' + str(x) assert epsilon > 0, 'epsilon must be postive, not ' + str(epsilon) low = 0 high = x guess = (low + high
So that's the guess and check method, slightly more feature-rich program for guessing the cube root. But that only tells us the cube root of perfect cubes and doesn't really give us anything else, any more information. So sometimes, you might want to say, well, I don't care that 9...
第31讲 Method Call 01:46 第32讲 Special Methods 02:12 第33讲 Python Classes and Inheritance 47:27 第34讲 Getters and Setters 01:45 第35讲 Subclass 02:46 第36讲 Understanding Program Efficiency (1) 51:26 第37讲 Understanding Program Efficiency (2) 49:13 第38讲 Searching and Sorting 48...
1. 大于等于1的正数n的方根,范围肯定在0~n之间;小于1的正数n的方根,范围肯定在0~1之间 2. 用二分法(Bisection method, Binary search)从中间开始找n的方根。 3. 对于大于等于1的正数n,先假设n/2是n的方根,如果n/2的平方大于n,那么说明n的方根在0~n/2之间;如果n/2的平方小于n,说明n的方根在n/2~n...
” It is often convenient to use a **compound Boolean expression** in the test of a conditional, for example,如果 x < y 且 x < z: print('x 是最小的') 否则如果 y < z: print('y 是最小的') 否则: print('z 是最小的')py **Finger exercise:** Write a program that examines ...
They represent concrete items in the program's domain. The simplest Python class I will start with the simplest class you could ever write in Python. oop/simplest.class.py class Simplest(): # when empty, the braces are optional pass print(type(Simplest)) # what type is this object? simp...
Pinball Region选项为球形区域,用户可以设置为程序控制(Program Controlled)、自动侦测数值 (Auto Detection Value)和定义球形区域半径(Radius)。 Time Step Controls选项为接触时间步长控制选项,用户可以设置为关闭(None)、自动二分(Automatic Bisection)、预测冲击(Predict For Impact)和使用冲击约束(Use Imp...
from queueimportPriorityQueueq=PriorityQueue()q.put(Data(5,"how"))q.put(Data(4,"to"))q.put(Data(1,"do"))q.put(Data(3,"in"))q.put(Data(2,"java"))fori inrange(5):print(q.get()) The program output. Data(priority=1,item='do')Data(priority=2,item='java')Data(priority=3,...
It’s based on the bisection method for finding roots of functions. This module comes with six functions divided into two categories:Find IndexInsert Element bisect() insort() bisect_left() insort_left() bisect_right() insort_right()
3. String Manipulation, Guess and Check, Approximations, Bisection 45:02 String Manipulations 03:05 For Loops With Strings 04:19 4. Decomposition, Abstraction, and Functions 41:09 Function Calls 02:34 Functions as Arguments 03:33 5. Tuples, Lists, Aliasing, Mutability, and Cloning 41:28 Tupl...