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Algebra · logarithms

Change of Base Formula Formula

Rewrites a logarithm using a convenient positive base k.

log_b x = log_k x / log_k b

Variables

b
original base
k
new base
x
positive argument

Reference details

Subject
Algebra
Topic
logarithms
Plain text
log_b(x) = log_k(x) / log_k(b)

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