Why does a scientific calculator have only two keys for calculating logarithms—natural log and common log?
1
Expert's answer
2012-04-10T07:05:31-0400
The logarithm log_b(x) can be computed from the logarithms of x and b with respect to an arbitrary base k using the following formula:
log_b(x) = log_k(x)\log_k(b).
Typical scientific calculators calculate the logarithms to bases 10 and e. Logarithms with respect to any base b can be determined using either of these two logarithms by the previous formula:
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