section_path: History/15th–18th century/Variable exponents, non-integer exponents
section_name: Variable exponents, non-integer exponents
paragraph_text: Variable exponents, non-integer exponents
  
  In 1748, Leonhard Euler introduced variable exponents, and, implicitly, non-integer exponents by writing:
  
  Consider exponentials or powers in which the exponent itself is a variable. It is clear that quantities of this kind are not algebraic functions, since in those the exponents must be constant.