当代码出现有规律的重复的时候,你就需要当心了,每次写3.14 * x * x不仅很麻烦,而且,如果要把3.14改成3.14159265359的时候,得全部替换。 有了函数,我们就不再每次写s = 3.14 * x * x,而是写成更有意义的函数调用 s = area_of_circle(x),而函数 area_of_circle 本身只需要写一次,就可以多次调用。 抽象...
# Import the 'pi' constant from the 'math' module to calculate the area of a circle from math import pi # Prompt the user to input the radius of the circle r = float(input("Input the radius of the circle : ")) # Calculate the area of the circle using the formula: area = π *...
圆面积的计算: #CaCircleArea.py r = 25 area = 3.1515 * r * r print(area) print("{:.2f}".format(area)) 结果输出 绘制五角星: #DrawStar.py from turtle import * color('red','red') begin_fill() for i in range(5): fd(200) rt(144) end_fill() done() 运行结果: 程序运行计时:...
Python program to find maximum of two numbers Python program to find the area and perimeter of a circle Python program to print ASCII value of a character Python program for simple interest Python program for compound interest Python program to check the given year is a leap year or not Simpl...
三角形对象从其父类shape继承的name、numberOfSides和findArea部分(尽管这些部分有不同的值和实现)。如果一个对象从shape类继承,它也将继承那些部分。它不一定用那些零件,但它有。它可能有额外的部分(例如,circle对象可能有一个radius值),但是它总是有那些部分。
area=pi*(radius**2) // This is an assignment PROGRAMMING vs MATH in programming,you do not "solve for x" pi=3.14159radius=2.2#area of circlearea = pi*(radius**2)radius=radius+1 an assignment expression on the right,evaluated to a value variable name on the left equivalent expression ...
import math def circle_area(r): return math.pi * r ** 2 result = circle_area(2) print(result) 总结 Python 是一种简单易学、功能强大的编程语言,适用于各种领域。本文介绍了 Python 的基本语法、数据类型、控制流语句、函数和模块等内容。希望可以帮助初学者快速入门 Python。
Write a Python program to calculate the area of the sector. Note: A circular sector or circle sector, is the portion of a disk enclosed by two radii and an arc, where the smaller area is known as the minor sector and the larger being the major sector. Test Data: Radius of a circle...
Therefore, you’re able to find fibonacci(8) without doing any recalculations. Then you ask for fibonacci(5), but that fifth number has been deleted from the cache. It therefore needs to be calculated from scratch.In most applications, you don’t need to constrain your cache and can use...
What to use instead of PCA. Talk, tsne intro. sklearn.manifold and sklearn.decomposition - PCA, t-SNE, MDS, Isomaps and others. Additional plots for PCA - Factor Loadings, Cumulative Variance Explained, Correlation Circle Plot, Tweet sklearn.random_projection - Johnson-Lindenstrauss lemma, Gau...