minors(..., First => ...) -- set the first minor to compute

minors(..., First => ...) -- set the first minor to compute

First => {rows, columns} -- set the first minor to compute

Minors are generated in the same order as that used by subsets(ZZ,ZZ). See minors(ZZ,Matrix).

i1 : R = ZZ[a..f];

i2 : M = matrix{{a,b,c},{d,e,f}}



o2 = | a b c |

     | d e f |



             2       3

o2 : Matrix R  <--- R

i3 : minors(2,M,First=>{{0,1},{0,2}})



o3 = ideal (- c*d + a*f, - c*e + b*f)



o3 : Ideal of R

i4 : minors(2,M,First=>{{0,1},{0,2}},Limit=>1)



o4 = ideal(- c*d + a*f)



o4 : Ideal of R

See also:

determinants

minors -- ideal generated by minors

minors(..., Limit => ...) -- specify how many to compute

See also:

Default value: null -- nothingness

Function: minors -- ideal generated by minors

Option name: First