55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
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/* Driver for routine sprstp */
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#include <stdio.h>
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#define NRANSI
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#include "nr.h"
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#include "nrutil.h"
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#define NP 5
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#define NMAX (2*NP*NP+1)
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int main(void)
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{
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unsigned long i,j,*ija,*ijat;
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float **a,**at,*sa,*sat;
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static float ainit[NP][NP]={
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3.0,0.0,1.0,0.0,0.0,
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0.0,4.0,0.0,0.0,0.0,
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0.0,7.0,5.0,9.0,0.0,
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0.0,0.0,0.0,0.0,2.0,
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0.0,0.0,0.0,6.0,5.0};
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ija=lvector(1,NMAX);
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ijat=lvector(1,NMAX);
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sa=vector(1,NMAX);
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sat=vector(1,NMAX);
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at=matrix(1,NP,1,NP);
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a=convert_matrix(&ainit[0][0],1,NP,1,NP);
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sprsin(a,NP,0.5,NMAX,sa,ija);
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sprstp(sa,ija,sat,ijat);
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for (i=1;i<=NP;i++) for (j=1;j<=NP;j++) at[i][j]=0.0;
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for (i=1;i<=NP;i++) {
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at[i][i]=sat[i];
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for (j=ijat[i];j<=ijat[i+1]-1;j++) at[i][ijat[j]]=sat[j];
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}
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printf("Original Matrix\n");
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for (i=1;i<=NP;i++) {
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for (j=1;j<=NP;j++) printf("%5.2f\t",a[i][j]);
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printf("\n");
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}
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printf("Transpose\n");
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for (i=1;i<=NP;i++) {
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for (j=1;j<=NP;j++) printf("%5.2f\t",at[i][j]);
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printf("\n");
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}
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free_convert_matrix(a,1,NP,1,NP);
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free_matrix(at,1,NP,1,NP);
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free_vector(sat,1,NMAX);
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free_vector(sa,1,NMAX);
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free_lvector(ijat,1,NMAX);
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free_lvector(ija,1,NMAX);
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return 0;
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}
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#undef NRANSI
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