(14) Square Root
Example: Square root of 900
Operation: Turn the outer scale slowly and find a value that
corresponds to both 90 on the inner scale and 10 on the outer
scale. In this example, "90" on the inner scale corresponds to
"30" on the outer scale and "10" on the outer scale corresponds
to "30" on the inner scale, thus the answer is 30.
(15) Currency Operation
Example: Convert 35 Swiss Franc (CHF) into Euro. The
exchange rate is 1.4 CHF to 1 Euro, therefore 14 CHF converts
to 10 Euro.
Operation: Align "14" on the outer scale with "10" on the inner
scale. Then, "35" on the outer scale corresponds to "25" on the
inner scale. Thirty-five CHF is the equivalent to 25 Euro. All
values on the inner scale correspond with the outer scale; CHF
to EUR (or other currency).
(13) Proportion
Example: 30/10 = 60/x
Operation: Align "30" on the outer scale with "10" on the inner
scale. Then, "60" on the outer scale corresponds to "20" on the
inner scale. At this point the proportion for every value and the
inner and outer scales is 30:10.
14
Summary of Contents for NG770C
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