In this number we have an even number of zeros to the right of the
decimal point, so we must set the indicator over 37 on the right-hand
half of the A scale. Read 608 under the hair-line on D scale. To place
the decimal point write:
square_root( .0037 ) = square_root( 37/10000 )
= 1/100 square_root( 37 )
The nearest perfect square to 37 is 6 * 6 = 36, so the answer should be
a little more than 0.06 or .0608. All of what has been said about use of
the A and D scales for squaring and extracting square root applies
equally well to the B and C scales since they are identical to the A and
D scales respectively.
A number of examples follow for squaring and the extraction of square
root.
Example
31: square( 2 ) = 4
32: square( 15 ) = 225
33: square( 26 ) = 676
34: square( 19.65 ) = 386
35: square_root( 64 ) = 8