05-11-2004
transposing letters
Hi, I've written a shell function in bash that reads letters into an array, then outputs them in one column with:
for n in "${array[@]}"; do
echo $n
done
I was wondering if anyone knew how i would transpose the letters that are output by the for loop. Right now my output is:
aabbcc
ddeeff
gghhii
ex...if I input 'aabbcc ddeeff gghhii' into the array, is it possible to transpose them and output:
ccbbaa
ffeedd
iihhgg
can i use sed?
thanks.
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LEARN ABOUT REDHAT
ztptrs
ZTPTRS(l) ) ZTPTRS(l)
NAME
ZTPTRS - solve a triangular system of the form A * X = B, A**T * X = B, or A**H * X = B,
SYNOPSIS
SUBROUTINE ZTPTRS( UPLO, TRANS, DIAG, N, NRHS, AP, B, LDB, INFO )
CHARACTER DIAG, TRANS, UPLO
INTEGER INFO, LDB, N, NRHS
COMPLEX*16 AP( * ), B( LDB, * )
PURPOSE
ZTPTRS solves a triangular system of the form A * X = B, A**T * X = B, or A**H * X = B, where A is a triangular matrix of order N stored in
packed format, and B is an N-by-NRHS matrix. A check is made to verify that A is nonsingular.
ARGUMENTS
UPLO (input) CHARACTER*1
= 'U': A is upper triangular;
= 'L': A is lower triangular.
TRANS (input) CHARACTER*1
Specifies the form of the system of equations:
= 'N': A * X = B (No transpose)
= 'T': A**T * X = B (Transpose)
= 'C': A**H * X = B (Conjugate transpose)
DIAG (input) CHARACTER*1
= 'N': A is non-unit triangular;
= 'U': A is unit triangular.
N (input) INTEGER
The order of the matrix A. N >= 0.
NRHS (input) INTEGER
The number of right hand sides, i.e., the number of columns of the matrix B. NRHS >= 0.
AP (input) COMPLEX*16 array, dimension (N*(N+1)/2)
The upper or lower triangular matrix A, packed columnwise in a linear array. The j-th column of A is stored in the array AP as
follows: if UPLO = 'U', AP(i + (j-1)*j/2) = A(i,j) for 1<=i<=j; if UPLO = 'L', AP(i + (j-1)*(2*n-j)/2) = A(i,j) for j<=i<=n.
B (input/output) COMPLEX*16 array, dimension (LDB,NRHS)
On entry, the right hand side matrix B. On exit, if INFO = 0, the solution matrix X.
LDB (input) INTEGER
The leading dimension of the array B. LDB >= max(1,N).
INFO (output) INTEGER
= 0: successful exit
< 0: if INFO = -i, the i-th argument had an illegal value
> 0: if INFO = i, the i-th diagonal element of A is zero, indicating that the matrix is singular and the solutions X have not been
computed.
LAPACK version 3.0 15 June 2000 ZTPTRS(l)