Function builtin_norm 

fn builtin_norm(
    args: &[RValue],
    named: &[(String, RValue)],
) -> Result<RValue, RError>

norm(x, type = "O") — matrix/vector norm.

Supported types: “O”/“1” (one-norm), “I” (infinity-norm), “F” (Frobenius), “M” (max modulus).