b=(double*)calloc(m,sizeof(double)); if (b==NULL) return(0);

b=(double*)calloc(m,sizeof(double)); if (b==NULL) return(0); #includeusing namespace std;#define PI 314159double area(double radius=0);double area(double a,double b);double area(double a,double b,double h);double area(double a,double b,double c,int);int main(){cout C++ 矩阵加法#includeusing namespace std;void plus(double a[],double b[],int m,double c[]) {int i;for(i=0;i operator=是什么意思啊# include double sum(double a,double b);double subtract(double a,double b);double divide(double a,double b);double multiply(double a,double b);main(){int choice;char operator;double a,b;double (*func)();printf( * * * * * incompatible types when assigning to type 'CHANGE' from type 'struct CHANGE *'typedef struct change{char str1[21];char str2[21];}CHANGE;CHANGE *p=NULL;p=(CHANGE*)calloc(3,sizeof(CHANGE*)); /*申请指针数组*/p[0]=(CHANGE*)calloc(M,sizeof(CHANGE)); C语言,用三个函数分别求b^2-4ac大于等于小于0时,方程ax^2+bx+c的根,从主函数输入a,b,c值#include stdio.hdouble a,b,c,r,disc;double *p,*q;double m[2],n[2];double r1(double x,double y) {r=y/(2*x);return(r);}double r2(double x,do #include stdio.h #include math.h double area(double a,b,c,d,m);{ double s=(a+b+c+d/2.0); return这个程序错哪了,题目是求面积, 定义一个函数void f(double a,double b,double& s,double& m)该函数实现将s=a的b次方,m=a开b次方,然后在main函数中调用该函数,输出s和m的值.请用C++解答 c++习题 10.下列函数定义中正确的是( ).请解析一下每个选项.还有正确答案A.double fun(double &x,double &y) B.double fun(double &x,double &y){ {double z; return *x/*y;z=x/y; }return z;}C.double fun(double *x,double *y) D.double double a=0.0,b=1.1; double b = Convert.ToDouble(a?0); 求教：C语言函数运算13 double m;//θ14 double n;//Δ15 double T;18 double XA,XB,XC;58 T=(2*A*b-3*a*B)/2*pow(A,1/3);59 m=acos(T);60 XA=(-b-2*sqrt(A)*cos(m/3))/(3*a);61 XB=(-b+sqrt(A)(cos(m/3)+sqrt(3)*sin(m/3)))/(3*a);62 XC=(-b+sqrt(A)(cos(m/3) C语言,double a=3 double b=3.0 double b=3.00C语言,double a=3 double b=3.0 double b=3.00 这3个都正确吗? 哪位高手帮忙看下二分法解方程哪里出错了#include #include #include #include int n; double c[16]; double Func(double); int BisectRoot(double,double,double,double,double *,int,int *); int main() { int i,m; double a,b,h,eps,*x; prin int b(double l,double r) { double a; aint b(double l,double r){double a;a=(l+r)/2;if(a*a-6>0) b(l,a);else if(a*a-6 #include double fun( int m ){double t = 1.0;int i;for( i = 2; i C语言简单计算器,支持加减乘除乘方运算,每步要有注释,求助C语言高手解决,谢谢!#include double add(double a,double b){ double s; s=a+b; return s;}double sub(double a,double b){ double s; s=a-b; return s;}double multi( C语言写的计算器中如何加入复数的运算?只能计算实数的加减乘除 怎么加入复数的运算#include double add(double a,double b){ double s; s=a+b; return s;}double sub(double a,double b){ double s; s=a-b; return s;}double mult