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JOHN NAPIER
He coined the word LOGARITHM
Logos- Greek word which means “Ratio”
Arithmos- Greek word which means “Number”
Invented during the advent of Industrial Revolution
Definition of Logarithm A quantity representing the power to
which a fixed number (the base) must be raised to produce a given number
Read:
Definition of Logarithm
• In general: is equivalent to
• It is the inverse of exponential function
Example