Logarithm to base 10
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log10(x) represents the logarithm of
the base 10.
log10(x) is equivalent to
x). See Example 1.
The logarithm to the base 10 is defined for all complex arguments x ≠ 0.
log10(x) rewrites logarithms to the base
10 in terms of the natural logarithm:
log10(x) = ln(x)/ln(10).
See Example 2.
page for details.
When called with a floating-point argument, this function is
sensitive to the environment variable
DIGITS which determines
the numerical working precision.
Compute these logarithms using
log10(10), log10(1000), log10(1)
Compute the same logarithms using
log with 10 as the first argument:
log(10, 10), log(10, 1000), log(10, 1)
log10 rewrites logarithms in terms of
log10(x), log10(x^2 - 1)
For floating-point values,
log10(123.4), log10(5.6 + 7.8*I), log10(-15.45)
For floating-point intervals,
results as floating-point intervals: