int DFT(int dir,int m,double *x1,double *y1){long i,k;double arg;double cosarg,sinarg;double *x2=NULL,*y2=NULL;x2=malloc(m*sizeof(double));y2=malloc(m*sizeof(double));if(x2==NULL||y2==NULL)return(FALSE);for(i=0;i<m;i++){x2[i]=0;y2[i]=0;arg=-di...