Compatibility functions for PyDSM (pydsm.relab)

This module re-implements some MATLAB interfaces that are useful for PyDSM.

Functions

eps([x])	Provide floating point relative accuracy
db(x[, signal_type, R])	Converts a value to dB a la Matlab
cplxpair(x[, tol, dim])	Sorts values into complex pairs a la Matlab.
shiftdim(x[, n, nargout])	Shift dimensions a la Matlab