def VoltageControlledVoltageSource(G):
    """symbolic voltage controlled voltage source
    @param G string voltage gain
    @return list of list of string s-parameter matrix
    containing LaTeX or ASCII strings for each element.
    @note strings can be any valid LaTeX
    @note this is the symbolic version of
    SignalIntegrity.Lib.Devices.VoltageControlledVoltageSource.VoltageControlledVoltageSource
    """
    return [['1', '0', '0', '0'], ['0', '1', '0', '0'], [G, '-' + G, '0',
        '1'], ['-' + G, G, '1', '0']]
