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The Maxima on-line user's manual

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Ident

Function: ident (<n>) Returns an <n> by <n> identity matrix.

m:matrix([1,2,3],[4,7,9]);
m2:submatrix(m,3);
m3:submatrix(1,m);
transpose(m);
invert(m2);
determinant(m2);
m2.invert(m2);
ident(2);
rank(m);
eigenvalues(m2);
eigenvectors(m2);
m2.invert(m2)-ident(2)

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

(%o1)                                true
(%i2) 

Related Examples

ident-invert-matrix-ratsimp

A:matrix([1,2],[3,4]);

b:matrix([1],[2]);

c:matrix([2,1]);

Calculate

ident-transpose

I2: ident(2);

A: matrix[ [1,0,2],[3...

B: matrix[ [1,7,0], [...

Calculate

ident

ident(3)*4;

Calculate

ident

o: [1,2];

ident(2)^^-1;

Calculate

ident

I3: ident(2);

M:matrix[[1,0],[3,5]];

Calculate

ident

I3: ident (3);

I3 * 4;

Calculate

ident-matrix

A:matrix([0,1,0,0],[-...

B:matrix([0],[0],[0],...

C:matrix([1,0,0,0]);

Calculate

ident

I2: ident(2);

M:matrix[[1,0],[3,5]];

M.I2;

Calculate

ident-matrix

v1:[1156,19];

v2:[-203,8];

n:matrix(v1,v2);

Calculate

ident-invert-matrix-ratsimp-sqrt

A: matrix([-1/2,-sqrt...

B: ident(4);

ratsimp(invert(A+B));

Calculate