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  2. Natural logarithm - Wikipedia

    en.wikipedia.org/wiki/Natural_logarithm

    The natural logarithm of e itself, ln e, is 1, because e 1 = e, while the natural logarithm of 1 is 0, since e 0 = 1. The natural logarithm can be defined for any positive real number a as the area under the curve y = 1/x from 1 to a [4] (with the area being negative when 0 < a < 1). The simplicity of this definition, which is matched in many ...

  3. Logarithm - Wikipedia

    en.wikipedia.org/wiki/Logarithm

    In chemistry the negative of the decimal logarithm, the decimal cologarithm, is indicated by the letter p. [63] For instance, pH is the decimal cologarithm of the activity of hydronium ions (the form hydrogen ions H + take in water). [64] The activity of hydronium ions in neutral water is 10 −7 mol·L −1, hence a pH of 7. Vinegar typically ...

  4. List of logarithmic identities - Wikipedia

    en.wikipedia.org/wiki/List_of_logarithmic_identities

    ln(r) is the standard natural logarithm of the real number r. Arg(z) is the principal value of the arg function; its value is restricted to (−π, π]. It can be computed using Arg(x + iy) = atan2(y, x). Log(z) is the principal value of the complex logarithm function and has imaginary part in the range (−π, π].

  5. Common logarithm - Wikipedia

    en.wikipedia.org/wiki/Common_logarithm

    A graph of the common logarithm of numbers from 0.1 to 100. In mathematics, the common logarithm is the logarithm with base 10. [1] It is also known as the decadic logarithm and as the decimal logarithm, named after its base, or Briggsian logarithm, after Henry Briggs, an English mathematician who pioneered its use, as well as standard logarithm.

  6. Logarithmic number system - Wikipedia

    en.wikipedia.org/wiki/Logarithmic_number_system

    Logarithmic number systems have been independently invented and published at least three times as an alternative to fixed-point and floating-point number systems. [1]Nicholas Kingsbury and Peter Rayner introduced "logarithmic arithmetic" for digital signal processing (DSP) in 1971.

  7. 10,000 Steps Per Day Is A Myth—So How Much Should You Really ...

    www.aol.com/10-000-steps-per-day-120000168.html

    The main elements you can change to increase intensity are speed and incline, says Rothstein. These will increase the workout that your heart gets and burn more calories. But, there are a few ...

  8. Prime-counting function - Wikipedia

    en.wikipedia.org/wiki/Prime-counting_function

    The ratio for ⁠ x / log x ⁠ converges from above very slowly, while the ratio for Li(x) converges more quickly from below. In the On-Line Encyclopedia of Integer Sequences, the π(x) column is sequence OEIS: A006880, π(x) − ⁠ x / log x ⁠ is sequence OEIS: A057835, and li(x) − π(x) is sequence OEIS: A057752.

  9. San Diego State edges No. 6 Houston 73-70 in overtime to ...

    www.aol.com/san-diego-state-edges-no-030009281.html

    Miles Bird scored 18 points and Jared Coleman-Jones added 16 to help San Diego State edge No. 6 Houston 73-70 in overtime in the third place game of the Players Era tournament Saturday night.