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The Maxima on-line user's manual

Algebra Calculator

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Ident

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

n : matrix ([a[11], a[12]], [a[21], a[22]]);
p_n : determinant (x * ident(2) - n), expand;
at (x . x - a[22]*x - a[11]*x + a[11]*a[22] - a[12]*a[21], [x = n]);

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

(%o1)                                true
(%i2) 

Related Examples

ident-matrix

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

A.ident(4);

Calculate

ident-mat_norm

mat_norm(ident(3), fr...

Calculate

ident-matrix-ratsimp

ip: matrix([a,b],[c,d]);

ident: matrix([ 1, 0]...

ro090: matrix([ 0,-1]...

Calculate

ident

I3: ident (3);

I3 * 4;

Calculate

ident-matrix

A:matrix([2,-1,2],[5,...

B:ident(3)*t;

C:A-B;

Calculate

ident

I2:ident(2);

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

m.I2;

Calculate

ident-load

load(ctensor);

ct_coords:[t,x,y,z];

lg:ident(4);

Calculate

ident-invert-matrix-submatrix

m:matrix([1,2,3],[4,7...

m2:submatrix(m,3);

m3:m2.invert(m2)-iden...

Calculate

ident-transpose

I3:ident(3);

I3*4;

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

Calculate