@norm |

Norm of matrix.

Syntax: @norm(m[, n])

m: matrix, vector, sym, series

n: (optional) integer

Return: number

Returns the norm of m.

If no norm type is provided, this function returns the infinity norm. Possible choices for the norm type n include “–1” for the infinity norm, “0” for the Frobenius norm, and an integer “n” for the norm.

Examples

matrix m1 = @mnrnd(10, 4)

scalar sc1 = @norm(m1)

computes the infinity norm of the matrix M1.

sym s1 = @inner(m1)

scalar sc2 = @norm(s1, 2)

computes the norm of the symmetric matrix S1.

series x = nrnd

scalar sc3 = @norm(x)

assigns to SC3 the norm of the series X computed over the entire workfile.

Cross-references

See also
@cond.