Question 205153
In general, the definition is:
"The logarithm of a number (x) is the power (y) to which the base (b) must be raised to equal that number:
{{{Log[b](x) = y}}} means: {{{b^y = x}}} where b is the base of the logarithm".
For example:
{{{Log[10](100) = 2}}} means: {{{10^2 = 100}}}