Logarithms

Rules of logarithms - log 10 and log e for numbers ranging 1 to 1000

log_b (xy) = log_b x + log_b y         (1)

log_b (x/y) = log_b x - log_b y         (2)

log_b x^p = p log_b x         (3)

log_b (1/x) = - log_b x         (4)

log_b b = 1         (5)

log_b 1 = 0         (6)

log_b x = log_a x log_b a         (7)

log 10 and log e for numbers ranging 1 to 1000

are indicated below:

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