cf.RTOL

cf.RTOL(*arg)[source]

The value of relative tolerance for testing numerically tolerant equality.

Parameters:
arg : int, optional

The new value of relative tolerance. The default is to not change the current value.
Returns:
out : float

The value prior to the change, or the current value if no new value was specified.

See also

cf.ATOL

Examples: 
>>> cf.RTOL()
1.0000000000000001e-05
>>> old = cf.RTOL(1e-10)
>>> cf.RTOL(old)
1e-10
>>> cf.RTOL()
1.0000000000000001e-05