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