Option variable
detout
Default value: false
When detout
is true
, the determinant of a
matrix whose inverse is computed is factored out of the inverse.
For this switch to have an effect doallmxops
and doscmxops
should be
false
(see their descriptions). Alternatively this switch can be
given to ev
which causes the other two to be set correctly.
Example:
(%i1) m: matrix ([a, b], [c, d]); [ a b ] (%o1) [ ] [ c d ] (%i2) detout: true$ (%i3) doallmxops: false$ (%i4) doscmxops: false$ (%i5) invert (m); [ d - b ] [ ] [ - c a ] (%o5) ------------ a d - b c