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The Maxima on-line user's manual

Algebra Calculator

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Col

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

a:matrix([1,1,2],[2,3,5]);
b:a;
n:length( a );
b[1];
for i:1 step 1 thru n do for j:i step 1 thru n do block([],b[i], b[i]:b[i]/b[i,i], if j < n then b[j+1]: b[j+1]-b[i]*b[j+1,i]);
b;
echelon(a);
x:col(b,length(a)+1);

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

(%o1)                                true
(%i2) 

Related Examples

col-matrix

v1:[1,1,0,a];

v2:[3,-1,b,-1];

v3:[-3,5,a,-4];

Calculate

col-echelon-length-matrix

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

b:echelon(a);

x:col(b,length(a)+1);

Calculate

col-length-matrix-op-part

matrix();

matrix([]);

m:matrix([1,2,3],[3,4...

Calculate

col-genmatrix

n : 4;

W : genmatrix(w,n,n);

W[1];

Calculate