Math Flashcards
1
Q
What’s a logarithm?
A
The logarithm is the inverse operation to exponentiation. That means the logarithm of a number is the exponent to which another fixed value, the base, must be raised to produce that number.
For example, the base 10 logarithm of 1000 is 3, as 10 to the power 3 is 1000 (1000 = 10 × 10 × 10 = 103);
2
Q
What’s a logarithm default base?
A
Log alone means base 10
3
Q
How to change the base of a logarithm? Using base 10
A
We make a division of the log number divided by log base.
Log (3) of 7 is equal to log(10) 7 / log(10) 3
4
Q
What’s a natural logarithm?
A
It’s a logarithm base e
