The Slide Rule in Theory and Practice |
Common terms and phrases
accuracy adding and subtracting angle whose sine answer anti-logarithm arithms barred characteristic complementary angle correct to four cosec cube root cursor over 3.46 D scale decimal notation decimal point distance divided dividend divisor engraved Evaluate explained in Section fact feet Find the angle find the product find the value fix the decimal following examples formulæ four figures four significant figures gauge mark graph Hence illustrated inches left-hand length representing log logarithmic scale logarithms of numbers mantissa Mean Differences method of finding metres Move the slide multiplication and division number of figures obtained operation ordinary ruler orlog place the cursor quadrant quotient reciprocal red extension red graduations Result scale and read scale read Section 14 Similarly Sine Rule slide protrudes Slide Rule Slide the cursor slipping the slide square root Step 1 Bring Step 2 Find tables of logarithms tables on pages trigonometrical ratios vulgar fractions