Subversion Repositories wimsdev

!goto $wims_read_parm

:def
title=Trace
synonyme=trace of a matrix, matrix trace
input=square_matrix
!exit

:proc

result=!exec pari trace([$mat])
!exit

:output
!set pars=$[max(min($rows,10),1)]
<center>
<table border=0 cellpadding=2>
!for i=1 to $rows
 !set l=!line $i of $formula
 <tr>
 !if $i=1
  <td nowrap rowspan=$rows>trace $(m_leftpar$pars)
 !endif
 !for j=1 to $cols
  !set k=!item $j of $l
  <td nowrap align=center>$k
 !next j
 !if $i=1
  <td nowrap rowspan=$rows>$(m_rightpar$pars) = $result
 !endif
!next i

</table></center>
!exit