diff options
Diffstat (limited to '2.3-1/src/c/signalProcessing/%k/dmodka.c')
-rw-r--r-- | 2.3-1/src/c/signalProcessing/%k/dmodka.c | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/2.3-1/src/c/signalProcessing/%k/dmodka.c b/2.3-1/src/c/signalProcessing/%k/dmodka.c new file mode 100644 index 00000000..c0630ec0 --- /dev/null +++ b/2.3-1/src/c/signalProcessing/%k/dmodka.c @@ -0,0 +1,97 @@ +#include<stdio.h> +#include<math.h> +#include "modk.h" +double max_calc(double* ptr,int sz) +{ + int i=0; + double mx; + if(ptr[0]<0) + { + ptr[0]=-1*ptr[0]; + } + mx=(ptr[0]); + //printf("%lf\n",mx); + for(i=1;i<sz;i++) + { + if(ptr[i]<0) + { + ptr[i]=-1*ptr[i]; + } + if(mx<(ptr[i])) + mx=(ptr[i]); + } + return mx; +} +void dmodka(double* inp,int size,double* oup) +{ + double ones[size],PI=M_PI; + double eps=pow(2,-52); + int i; + for(i=0;i<size;i++) + { + ones[i]=1; + } + double a[size],b[size],c[size],an[size],bn[size],cn[size],kans[size]; + + int j,kk,l,m; + for(j=0;j<size;j++) + { + a[j]=1; + } + for(kk=0;kk<size;kk++) + { + b[kk]=sqrt(ones[kk]-inp[kk]); + } + for(l=0;l<size;l++) + { + c[l]=sqrt(inp[l]); + + } + int x=0; + //double maxi; + //maxi=max_calc(c,size); + //printf("%lf",maxi); + + while(max_calc(c,size)>eps) + { + int q,w,r; + for(q=0;q<size;q++) + { + an[q]=0.5*(a[q]+b[q]); + } + for(w=0;w<size;w++) + { + bn[w]=sqrt(a[w]*b[w]); + } + for(r=0;r<size;r++) + { + cn[r]=0.5*(a[r]-b[r]); + } + int x,y,z; + for(x=0;x<size;x++) + { + a[x]=an[x]; + } + for(y=0;y<size;y++) + { + b[y]=bn[y]; + } + for(z=0;z<size;z++) + { + c[z]=cn[z]; + } + } + int q,w; + for(q=0;q<size;q++) + { + oup[q]=PI*(ones[q]/(2*a[q])); + } + +} +/* +int main() +{ + double m[3]={0.1,0.2,0.3}; + dka(m,3); +} +*/ |