log
The base10 logarithm function.
Syntax

log(x)

x
is a real or complex number

Description
For real positive x
, log(x)
is the base10 logarithm of x
, that is, the unique solution y
to 10^y = x
.
The real identity log(x) = ln(x)/ln(10)
leads to the natural generalisation
log(z) = ln(z)/ln(10)
for all nonzero complex z
.
Examples
log(1000)
3
log(3.5⋅10^−20)
−19.4559319556
log(−1)
1.36437635384⋅i
log(i)
0.682188176921⋅i