# record 1: header: parent, keywords
# record 2: calling parameters
# record 3: submit buttons
# record 4: html form content

:linear algebra
matrix, determinant, trace, matrix inverse, inverse matrix,
characteristic polynomial

:datatype, matrix

:operation, Determinant
operation, Rank
operation, Trace
operation, Inverse Matrix
operation, Characteristic Polynomial

:<TD style="text-align:center;">
 $submit1
 $submit2
 $submit3
 $submit4
 $submit5
 <TD> of </TD>
 <TD align=RIGHT>
 <TEXTAREA NAME="formula" rows=4 cols=30>
1, 2, 3, 4
2, 3, 4, 1
3, 4, 1, 2
4, 1, 2, 3
</TEXTAREA>
