LOG: logarithm, optional 2nd argument is base (f)

• • result = LOG ( x )
  computes the

  natural logarithm

  (base e) of x, e.g.:
  • y = LOG( 10 ) ! y is set to 2.302585093
• • result = LOG ( x , b)
  computes the

  base b logarithm

  of x, e.g.:
  • y = LOG( 100, 10 ) ! y is set to 2
• the inverse function to LOG is EXP, e.g.
  • x = EXP( 2.302585093 ) ! x is set to 10
• the inverse function to LOG(x, base) is base**x (or base^x), e.g.
  • x = 10**2 ! x is set to 100

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