### The Maxima on-line user's manual

Algebra Calculator

#### Col

Function: col (<M>, <i>) Returns the <i>th column of the matrix <M>. The return value is a matrix.

There are also some inexact matches for `col`. Try `?? col` to see them.

```(%o1)                                true
(%i2) ```

### Related Examples

##### col-echelon-matrix-rowop

m:matrix([1,1,3,1,1,0...

m1:echelon(m);

m2:rowop(m1,1,3,1);

Calculate

##### col-define-do-eigenvectors-exp-ident-matrix-nullity-nullspace

A:matrix([6, -6, 5], ...

b(t):=matrix([0],[0]...

X(t) := matrix([x1(t...

Calculate

##### col-do-length-nullspace-print-row

for n : 2 thru 3 do( ...

Calculate

r:15;

n1:5;

n2:3;

Calculate

##### col-display-do-row

for n : 2 thru 6 do( ...

Calculate

##### col-matrix-rank-triangularize

A:matrix([h,a,b,c,d],...

B:triangularize(A);

rank(B);

Calculate

##### col-echelon-length-matrix

a:matrix([1,2,3,6],[2...

b:a;

n:length( a );

Calculate

##### col-cos-matrix-pi-ratsimp-sin-tex-trigreduce

A01:matrix([cos(th1),...

A12:matrix([cos(th2-%...

A23:matrix([cos(th3),...

Calculate

##### col-length-matrix-rest

a : matrix([−3, 4, 5,...

n : length(a);

t : matrix([1/a[1, 1]]);

Calculate

##### col-genmatrix-min-numer-permanent-print-random-row-sort-sqrt-transpose

norm(x):=sqrt(x.x);

v:[1,1,1];

a[i,j]:=random(100);

Calculate