def output_task(name, freq, bins, center):
    """print task information"""
    print('\nTask information:\n')
    if name is 'oto':
        print(
            '                  Parameter name:\tOritentational tetrahedral order'
            )
    if name is 'tto':
        print(
            '                  Parameter name:\tTranslational tetrahedral order'
            )
    if name is 'avc':
        print(
            '                  Parameter name:\tAsphericity of the Voronoi cell'
            )
    if name is 'msd':
        print('                  Parameter name:\tMean square displacement')
    print('                       Frequency:\tevery {:d} frame(s)'.format(freq)
        )
    print('                  Number of bins:\t{:d}'.format(bins))
    if name is not 'msd':
        print('                     Center atom:\t{:s}\n'.format(center))
