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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-transpose

I3:ident(3);

I3*4;

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

Calculate

ident

I3:ident(3);

I3*4;

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

Calculate

ident-load-matrix-sin-transpose

load(itensor);

imetric(g);

h: matrix([1,r,r*sin(...

Calculate

ident

I2: ident(2);

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

M.I2;

Calculate

ident-invert

invert(s*ident(2)-A);

Calculate

ident-invert-matrix-submatrix

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

m2:submatrix(m,3);

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

Calculate

ident

i3:ident(3);

i3*4;

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

Calculate

ident-load

load(ctensor);

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

lg:ident(4);

Calculate

ident-matrix

B:matrix([-1,-4,5],[3...

BI:matrix([B,ident(2)]);

Calculate

ident

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

I3:ident(3);

I2:ident(2);

Calculate