Five-Place Logarithmic and Trigonometric Tables (Classic Reprint) - Softcover

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Excerpt from Five-Place Logarithmic and Trigonometric Tables

1. If the natural numbers are regarded as powers of ten, the exponents of the powers are the Common or Briggs Logarithms of the numbers.

2. The logarithm of a product is found by adding the logarithms of its factors.

3. The logarithm of a quotient is found by subtracting the logarithm of the divisor from that of the dividend.

4. The logarithm of a power of a number is found by multiplying the logarithm of the number by the exponent of the power.

5. The logarithm of the root of a number is found by dividing the logarithm of the number by the index of the root.

6.The logarithms of 1, 10, 100, etc., and of 0.1, 0.01, 0.001, etc., are integral numbers. The logarithms of all other numbers are fractions.

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