File: tril.man

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.TH tril 1 "April 1993" "Scilab Group" "Scilab Function"
.so ../sci.an
.SH NAME
tril - lower triangular part of matrix
.SH CALLING SEQUENCE
.nf
tril(x [,k])
.fi
.SH PARAMETERS
.TP 10
x
: matrix (real, complex, polynomial, rational)
.TP
k
: integer (default value 0)
.SH DESCRIPTION
Lower triangle part of a matrix.
\fVtril(x,k)\fR  is made by entries below the kth diagonal :
k>0 (upper diagonal) and   k<0 (diagonals below 
the main diagonal).
.SH EXAMPLE
.nf
s=poly(0,'s');
tril([s,s;s,1])
tril([1/s,1/s;1/s,1])
.fi
.SH SEE ALSO
triu, ones, eye, diag