from brian2.core.clocks import check_dt)
- brian2.core.clocks.check_dt(new_dt, old_dt, target_t)[source]¶
Check that the target time can be represented equally well with the new dt.
new_dt : float
The new dt value
old_dt : float
The old dt value
target_t : float
The target time
If using the new dt value would lead to a difference in the target time of more than
new_dt(by default, 0.01% of the new dt).
>>> from brian2 import * >>> check_dt(float(17*ms), float(0.1*ms), float(0*ms)) # For t=0s, every dt is fine >>> check_dt(float(0.05*ms), float(0.1*ms), float(10*ms)) # t=10*ms can be represented with the new dt >>> check_dt(float(0.2*ms), float(0.1*ms), float(10.1*ms)) # t=10.1ms cannot be represented with dt=0.2ms Traceback (most recent call last): ... ValueError: Cannot set dt from 100. us to 200. us, the time 10.1 ms is not a multiple of 200. us.