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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

i3:ident(3);

Calculate

ident

I2;

ident(2);

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

Calculate

ident

I3:ident(3);

I2:ident(2);

mm: matrix[[0,-1,1],[...

Calculate

ident-ilt-invert-matrix

F : matrix( [ -beta] );

I : ident(1);

E : invert(s*I - F);

Calculate

ident

I2: ident(2);

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

m*I2;

Calculate

ident-load-matrix-rank

load("diag");

C: matrix( [3,0,1,-2]...

Cp:C+ident(4);

Calculate

ident-matrix

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

L=L*ident(3);

f:det(A-L);

Calculate

ident-matrix

X = matrix ([2,0,1],[...

X.X.X-2*ident(3).X.X+...

Calculate

ident-matrix

X = matrix ([2,0,1],[...

X.X.X-2*ident(3).X.X+...

Calculate

ident-load

load(ctensor);

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

lg:ident(4);

Calculate