def csdele(self, kcn1="", kcn2="", kcinc="", **kwargs):
    """Deletes local coordinate systems.

    APDL Command: CSDELE

    Parameters
    ----------
    kcn1, kcn2, kcinc
        Delete coordinate systems from KCN1 (must be greater than 10) to
        KCN2 (defaults to KCN1) in steps of KCINC (defaults to 1).  If KCN1
        = ALL, KCN2 and KCINC are ignored and all coordinate systems are
        deleted.

    Notes
    -----
    This command is valid in any processor.
    """
    command = "CSDELE,%s,%s,%s" % (str(kcn1), str(kcn2), str(kcinc))
    return self.run(command, **kwargs)