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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-sqrt-transpose

e:matrix([1/sqrt(3),1...

A:ident(3)-2/3*transp...

A.transpose(matrix([1...

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ident

i2:ident(2);

i2*4;

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

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ident-matrix-ratsimp

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

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

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

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ident

I2:ident(2);

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

M.I2;

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ident-matrix

A:matrix([5,-3,2],[6,...

I:ident(3);

B:A-x.I;

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ident

I2: ident(2);

I2*4;

M:matrix[[1,3], [7,5]];

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ident-transpose

I2:ident(2);

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

M.I2;

Calculate

ident

I2: ident(2);

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

M.I2;

Calculate

ident

I2: ident(2);

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

M.I2;

Calculate

ident-transpose

I2: ident(2);

I2*4;

M:matrix[[1,3], [7,5]];

Calculate