Again, in the use of decimals, it is unusual to give less than two figures.

Thus 143 and 14 286 represent respectively and i ° ° to the same number of places of decimals, but the latter is obviously more exact than the former.

In this table, unlike Table IV., amplitudes are all expressed as decimals of the mean value of the potential gradient for the corresponding season.

To add or subtract decimals, we must reduce them to the same denomination, i.e.

Expression in L and decimals of LI is usually recommended, but it depends on circumstances whether some other method may not be simpler.