编写一个函数求三角形面积在主函数中输入三边长通过调用函数求其面积

运用海伦公式dimPaslong,Saslongifa+b>cthenifb+c>athenifa+c>bthenp=(a+b+c)/2S=sqr(p*(p-a)*(p-b)*(p-c))endife

#include#includefloatarea(float,float,float);voidmain(){\x09floata,b,c,result;\x09printf("输入三角形的三边:\

#definePI3.14#includeusingnamespacestd;doublearea(floati){return(PI*i*i);}doublecircumference(floati

#include#includemain{inta,b,c;intp,s;scanf("%d%d%d",&a,&b,&c);p=(a+b+c)/2;if(a+b>c&&a+c>b&&b+c>a){s=

intjc(intx){returnx==1?1:jc(x-1)*x;}再问：可以编一个完整的么？我直接运行试一下。。。新手，不好意思，，，，谢谢再答：intjc(intx){returnx==1?1

#includeusingnamespacestd;floatmianji(floata,floatb){returna*b;}floatzhouchang(floata,floatb){return

#include<stdio.h>#include<stdlib.h>#define Pi 3.14159double square(double

includeincludeddoublefun(inta,intb,intc){intp;p=(a+b+c)/2;returnsqrt(p*(p-a)*(p-b)*(p-c));}再问：ok再问：

#include<stdio.h>#define Pi 3.14159double Square(double r){  &nb

#include#includeusingnamespacestd;intmain(){floata;floatb;floatc;floats;floatp;coutb>>c;p=(a+b

#include#include#includeusingnamespacestd;classbase{public:virtualvoiddisp()=0;};classtriangle:publi

function [ s ] = solve_area( a,b,c )  p=(a+b+c)./2;&nbs

假设知道三角形的三边长为a,b,c.程序如下：#include#includedoublearea(doublea,doubleb,doublec){doublearea=0,s=0;s=(a+b+c

include#include#defineS(a+b+c)/2#defineAREA(a,b,c)sqrt(S*(S-a)*(S-b)*(S-c))main(){floata,b,c;printf(

用海伦公式比较简单.不知道你要用什么语言编写?我简单写一下C语言的：doublesabc(doublea,doubleb,doublec){doublep,s;p=(a+b+c)/2;s=squrt(

p=1/4*(2*x*z+y*y-x*x-z*z);应该改为p=1.0/4*(2*x*z+y*y-x*x-z*z);或者p=1/4.0*(2*x*z+y*y-x*x-z*z);原因是：当进行运算时,1

voids(folata,folatb,folatc){folatp;p=(a+b+c)/2;S=√[p(p-a)(p-b)(p-c)];returns;}

//使用海伦公式#include/*ForIO*/#include/*Forsqrt()*/intmain(void){doublea,b,c,p,s;printf("请输入a,b和c：");scan

functionfun(d,h){if(d

利用海伦公式：S=(p(p-a)(p-b)(p-c))^(1/2);S为三角形面积,a,b,c为三角形三边长,p为三角形半周长（p=（a+b+c)*(1/2))(p(p-a)(p-b)(p-c))^(