# Logarithms and Exponents

### Laws of Exponents

### Laws of Logarithms

### Relationship Between Exponents and Logarithms

k: Logarithm of W to the base a.

a: Base of the Logarithm.

When the base is a=10, we omit it from the notation:

### Natural-Napierian Logarithms

When the base of the logarithm is the Euler's number e=2,71… the logarithm is called natural logarithm or Napierian Logarithm. Its notation is different:

### Relationship Between Exponents and Trigonometric Functions