resultants_to_differences

romanisim.ramp.resultants_to_differences(resultants)

Convert resultants to their finite differences.

This is essentially np.diff(…), but retains the first resultant. The resulting structure has tri-diagonal covariance, which can be a little useful.

Parameters:

resultantsnp.ndarray[n_resultant, nx, ny] (float)

The resultants

Returns:

differencesnp.ndarray[n_resultant, nx, ny] (float)

Differences of resultants