수다닷컴

질문 제목 : 2차원 배열 계산이요1. 2차원 배열에서 우선 grid란 값을 받아서 정확히는 모르겠지만 동적할당을 받았습니다.
2. 윗부분의 대부분은 상수값을 받았고 밑부분의 ap값을 구할고 합니다.
3. 자꾸 오류가 나서 그러는데 원래 2차원 배열과 일반 숫자는 더해지지 않나요?
오류도 찾고 싶습니다. 질문 내용 :
# includestdio.h
# include stdlib.h
# include malloc.h
int main (void){
int i,j,iter,choice;
double *ae,*aw,*as,*an,*ap;
double *t,*su;
double grid;double bw,bs,bn,be;
double qw,qs,qn,qe;
double spw,sps,spn,spe,sp;
double tw,ts,tn,te;

printf(grid);
scanf(%lf,&grid);

//printf(iteration);
//scanf(%lf,&iter);
printf(grid number==%lf\n,grid);
ae=(double *)malloc(grid*sizeof(double));
aw=(double *)malloc(grid*sizeof(double));
as=(double *)malloc(grid*sizeof(double));
an=(double *)malloc(grid*sizeof(double));
ap=(double *)malloc(grid*sizeof(double));
t=(double *)malloc(grid*sizeof(double));
su=(double *)malloc(grid*sizeof(double));

double a=0.001;
double k=1000;
double dx=0.1;
double dy=0.1;
sp=0;
printf(boundary west 1.heat flux 2. temp);
scanf(%d,&choice);
if(1==choice)
{
printf(heat flux\n);
scanf(%lf,qw);
bw=qw*a;
spw=0;
}else{
printf(temp\n);
scanf(&lf,tw);
bw=2*k/dy*a*tw;
spw=-2*k/dy;
}
printf(boundary east 1.heat flux 2. temp);
scanf(%d,&choice);
if(1==choice)
{
printf(heat flux\n);
scanf(%lf,qe);

be=qe*a;
spe=0;
}else{
printf(temp\n);
scanf(&lf,te);
be=2*k/dy*a*te;
spe=-2*k/dy;
}

printf(boundary south 1.heat flux 2. temp);
scanf(%d,&choice);
if(1==choice)
{
printf(heat flux\n);
scanf(%lf,qs);

bs=qs*a;
sps=0;
}else{
printf(temp\n);
scanf(&lf,ts);
bs=2*k/dy*a*ts;
sps=-2*k/dy;
}
printf(boundary north 1.heat flux 2. temp);
scanf(%d,&choice);
if(1==choice)
{
printf(heat flux\n);
scanf(%lf,qn);
bn=qn*a;
spn=0;
}else
{
printf(temp\n);
scanf(&lf,tn);
bn=2*k/dy*a*tn;
spn=-2*k/dy;
}

ae[0][0]=k*a/dx;
aw[0][0]=0;
an[0][0]=k*a/dy;
as[0][0]=0;
su[0][0]=bw+bs;
ap[0][0]=ae[0][0]+aw[0][0]+as[0][0]+an[0][0]-sp; -----계산이 되는 건가요???
printf(%lf\t,ap[0][0]);for(i=1;igrid;i++)
{for(j=1;jgrid;j++){
ae[i][j]=k*a/dx;
aw[i][j]=k*a/dx;
an[i][j]=k*a/dy;
as[i][j]=k*a/dx;
su[i][j]=0;
ap[i][j]=ae[i][j]+aw[i][j]+as[i][j]+an[i][j]-sp;
}
}
for(i=1;igrid;i++)
{for(j=1;jgrid;j++){
printf(%lf\t,ap[i][j]);
}
}

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