Assertion: logarithm's base | /r/HasProperty | positive
Facets:
value: except 1
type: OTHER
value: for any real y.
type: OTHER
Source sentences:
text: Logarithms can be defined for any positive base other than 1, not only e.
text: A logarithm function is defined with respect to a “base”, which is a positive number: if b denotes the base number, then the base-b logarithm of X is, by definition, the number Y such that bY
text: Why does the base have to be positive?
text: Since the base b is positive (b>0), the base b raised to the power of y must be positive (by>0) for any real y.
text: The function value will be positive because a positive base raised to any power is positive.
text: As noted above, the base can be any positive number (except 1).