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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

A:transpose[[1,0,2],[...

I2:ident(3);

A.I2;

Calculate

ident

I2: ident(2);

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

m.I2;

Calculate

ident-matrix

A:matrix([-1010,-1000...

B:matrix([1000], [100]);

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

Calculate

ident

I2: ident(2);

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

Calculate

ident-transpose

i2:ident(2);

i2*4;

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

Calculate

ident-transpose

I3:ident(3);

I3*4;

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

Calculate

ident-transpose

I3:ident(3);

I3*4;

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

Calculate

ident-invert-kill-matrix

kill(all);

A: matrix([0.3, 0.1, ...

D: matrix([260], [520...

Calculate

ident-load-matrix-rank

load("diag");

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

Cp:C+ident(4);

Calculate

ident

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

I3:ident(3);

I2:ident(2);

Calculate