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.TH colon 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
colon (:) - colon operator
.SH DESCRIPTION
.TP 10
:
: Colon. Used in subscripts and loops.
.LP
.TP 10
j:k
is the vector
.Vb [j, j+1, ..., k]
(empty if \fVJ>K\fR).
.TP
j:d:k
is the vector
.Vb [j, j+d, ..., j+m*d]
.LP
The colon notation can also be used to pick out selected rows,
columns and elements of vectors and matrices.
.TP 10
A(:)
is the vector of all the elements of \fVA\fR regarded as a single
column.
.TP
A(:,j)
is the \fVj\fR-th column of \fVA\fR
.TP
A(j:k)
is
.Vb [A(j),A(j+1),...,A(k)]
.TP
A(:,j:k)
is
.Vb [A(:,j),A(:,j+1),...,A(:,k)]
.TP
A(:)=w
fills the matrix \fVA\fR with entries of \fVw\fR (taken
column by column if \fVw\fR is a matrix).
.SH SEE ALSO
matrix
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