# chemcoord.Cartesian.get_bond_lengths¶

Cartesian.get_bond_lengths(indices)

Return the distances between given atoms.

Calculates the distance between the atoms with indices i and b. The indices can be given in three ways:

• As simple list [i, b]
• As list of lists: [[i1, b1], [i2, b2]...]
• As pd.DataFrame where i is taken from the index and b from the respective column 'b'.
Parameters: indices (list) – Vector of angles in degrees. numpy.ndarray