MATLAB 求圆形面积

/*2.用三个函数分别实现求三角形,正方形,圆形面积(所有底高半径都由用户输入):在主函数中,通过用户不同的选择分别进行调用:*/ #include <stdio.h>#define P 3.14double sanjiao(double di,double gao){ double mianji = (di * gao)/2 ; return mianji;} double zhengfangxing(double bian){ double mianji2 = bian*bian; ret

//用面向对象多态的思想分别去求圆形和长方形的面积和周长 static void Main(string[] args) { Sharp sharp = new Circle(5); double area=sharp.GetArea(); double perimeter= sharp.Getperimeter(); Console.WriteLine("面积是{0},周长是{1}",area,perimeter); Console.ReadKey(); } public abstr

1104: 零起点学算法11--求梯形面积 Time Limit: 1 Sec  Memory Limit: 64 MB   64bit IO Format: %lldSubmitted: 6473  Accepted: 1875[Submit][Status][Web Board] Description 水题 Input 输入3个浮点数,分别表示上底.下底和高,中间用逗号隔开(题目包含多组数据) Output 输出梯形的面积,保留2位小数 Sample Input 2,4,5 Sample

1 //三角剖分求多边形面积的交 HDU3060 2 3 #include <iostream> 4 #include <cstdio> 5 #include <cstring> 6 #include <stack> 7 #include <queue> 8 #include <cmath> 9 #include <algorithm> 10 using namespace std; 11 12 const int max

package zhongqiuzuoye; public class Rect { public double width; public double height; Rect(double width,double height) //带有两个参数的构造方法,用于将width和height属性初化; { this.width=width; this.height=height; } Rect() //不带参数的构造方法,将矩形初始化为宽和高都为10. { width=10; height=

Atlantis Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Description There are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of parts of

覆盖的面积 Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Description 给定平面上若干矩形,求出被这些矩形覆盖过至少两次的区域的面积. Input 输入数据的第一行是一个正整数T(1<=T<=100),代表测试数据的数量.每个测试数据的第一行是一个正整数N(1<=N<=1000),代表矩形的数量,然后是N行数据,每一行包含四个浮点数,代表平面上的一个

poj1408——叉积求多边形面积 Fishnet Time Limit: 1000MS   Memory Limit: 10000K Total Submissions: 1853   Accepted: 1185 Description A fisherman named Etadokah awoke in a very small island. He could see calm, beautiful and blue sea around the island. The previou

Hotter Colder Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 2343   Accepted: 981 Description The children's game Hotter Colder is played as follows. Player A leaves the room while player B hides an object somewhere in the room. Player