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  2. Logarithm - Wikipedia

    en.wikipedia.org/wiki/Logarithm

    In mathematics, the logarithm is the inverse function to exponentiation. That means that the logarithm of a number x to the base b is the exponent to which b must be raised to produce x. For example, since 1000 = 103, the logarithm base of 1000 is 3, or log10 (1000) = 3.

  3. London, Ontario - Wikipedia

    en.wikipedia.org/wiki/London,_Ontario

    London is a city in southwestern Ontario, Canada, along the Quebec City–Windsor Corridor. The city had a population of 422,324 according to the 2021 Canadian census. London is at the confluence of the Thames River and North Thames River, approximately 200 km (120 mi) from both Toronto and Detroit; and about 230 km (140 mi) from Buffalo, New York.

  4. Telephone numbers in Slovakia - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbers_in_Slovakia

    Telephone numbers in Slovakia. This page details the format and usage of telephone numbers in Slovakia. Today, Slovakia uses a closed numbering plan with area codes beginning with 0. After 0, there is usually a 2-digit prefix, followed by a 7-digit subscriber number. The capital, Bratislava, has one-digit prefix and an 8-digit subscriber number ...

  5. Number sign - Wikipedia

    en.wikipedia.org/wiki/Number_sign

    The symbol # is known variously in English-speaking regions as the number sign, hash, or pound sign. The symbol has historically been used for a wide range of purposes including the designation of an ordinal number and as a ligatured abbreviation for pounds avoirdupois – having been derived from the now-rare ℔ .

  6. Pi - Wikipedia

    en.wikipedia.org/wiki/Pi

    The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics.

  7. History of the Houston Police Department - Wikipedia

    en.wikipedia.org/wiki/History_of_the_Houston...

    The livery on HPD squads (with a silver shield on the front doors which has 'HOUSTON POLICE' and the 'RADIO PATROL' above the shield) was phased out where a white stripe with red inserts were phased in. The main switchboard phone number was later replaced with the 911 logo. 1984: HPD planned to re-institute a mount patrol downtown.

  8. California Board of Accountancy - Wikipedia

    en.wikipedia.org/wiki/California_Board_of...

    The California Board of Accountancy (CBA) was established in 1901 in San Francisco. All the records were destroyed in the 1906 San Francisco earthquake and fire, including all the documents of the first 65 licensees. The secretary-treasurer of the CBA was able to reconstruct the records by corresponding with each of the licensees.

  9. List of counties in California - Wikipedia

    en.wikipedia.org/wiki/List_of_counties_in_California

    Of the 58 counties in California, 14 are governed under a charter. They are Alameda, Butte, El Dorado, Fresno, Los Angeles, Orange, Placer, Sacramento, San Bernardino, San Diego, San Francisco, San Mateo, Santa Clara, and Tehama. [6] Nine counties in California are named for saints, tied with Louisiana for the largest number.