Returns true if the given ipaddr is in the range.
e.g.:
require 'ipaddr' net1 = IPAddr.new("192.168.2.0/24") net2 = IPAddr.new("192.168.2.100") net3 = IPAddr.new("192.168.3.0") p net1.include?(net2) #=> true p net1.include?(net3) #=> false
Returns a network byte ordered string form of the IP address.
Returns a new ipaddr built by converting the IPv6 address into a native IPv4 address. If the IP address is not an IPv4-mapped or IPv4-compatible IPv6 address, returns self.
Returns a string containing a human-readable representation of the ipaddr. (“#<IPAddr: family:address/mask>”)
Log an UNKNOWN
message. This will be printed no matter what the logger’s level is.
See info
for more information.
Creates a matrix where the diagonal elements are composed of values
.
Matrix.diagonal(9, 5, -3) => 9 0 0 0 5 0 0 0 -3
Returns the (row, column) cofactor which is obtained by multiplying the first minor by (-1)**(row + column).
Matrix.diagonal(9, 5, -3, 4).cofactor(1, 1) => -108
Returns true
if this is a diagonal matrix. Raises an error if matrix is not square.
Returns true
if this is an hermitian matrix. Raises an error if matrix is not square.
Returns true
if this is an orthogonal matrix Raises an error if matrix is not square.
Returns true
if this is a unitary matrix Raises an error if matrix is not square.
Returns a clone of the matrix, so that the contents of each do not reference identical objects. There should be no good reason to do this since Matrices are immutable.
Returns a matrix with entries rounded to the given precision (see Float#round
)
Returns the conjugate of the matrix.
Matrix[[Complex(1,2), Complex(0,1), 0], [1, 2, 3]] => 1+2i i 0 1 2 3 Matrix[[Complex(1,2), Complex(0,1), 0], [1, 2, 3]].conjugate => 1-2i -i 0 1 2 3
Returns an array containing matrices corresponding to the real and imaginary parts of the matrix
m.rect == [m.real, m.imag] # ==> true for all matrices m
Overrides Object#inspect
Returns a vector with entries rounded to the given precision (see Float#round
)
Returns a copy of the vector.
Creates a single-row matrix from this vector.
Overrides Object#inspect