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  2. Air mass (solar energy) - Wikipedia

    en.wikipedia.org/wiki/Air_mass_(solar_energy)

    The illuminance for Daylight (this version) under AM1.5 is given as 109,870 lux (corresponding with the AM1.5 spectrum to 1000.4 W/m 2). AM2~3 AM2 ( z {\displaystyle z} =60°) to AM3 ( z {\displaystyle z} =70°) is a useful range for estimating the overall average performance of solar cells installed at high latitudes such as in northern Europe.

  3. Orders of magnitude (power) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(power)

    1.1 × 10 3 W tech: power of a microwave oven: 1.366 × 10 3 W astro: power per square meter received from the Sun at the Earth's orbit: 1.5 × 10 3 W tech: legal limit of power output of an amateur radio station in the United States up to 2 × 10 3 W biomed: approximate short-time power output of sprinting professional cyclists and ...

  4. Fifth power (algebra) - Wikipedia

    en.wikipedia.org/wiki/Fifth_power_(algebra)

    In arithmetic and algebra, the fifth power or sursolid [1] of a number n is the result of multiplying five instances of n together: n 5 = n × n × n × n × n. Fifth powers are also formed by multiplying a number by its fourth power, or the square of a number by its cube. The sequence of fifth powers of integers is:

  5. Exponentiation - Wikipedia

    en.wikipedia.org/wiki/Exponentiation

    For example, 3 5 = 3 · 3 · 3 · 3 · 3 = 243. The base 3 appears 5 times in the multiplication, because the exponent is 5. Here, 243 is the 5th power of 3, or 3 raised to the 5th power. The word "raised" is usually omitted, and sometimes "power" as well, so 3 5 can be simply read "3 to the 5th", or "3 to the 5".

  6. Windows Calculator - Wikipedia

    en.wikipedia.org/wiki/Windows_Calculator

    A simple arithmetic calculator was first included with Windows 1.0. [5]In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.

  7. Tetration - Wikipedia

    en.wikipedia.org/wiki/Tetration

    In these cases, iterated exponential notation is used to express them in base 10. The values containing a decimal point are approximate. Usually, the limit that can be calculated in a numerical calculation program such as Wolfram Alpha is 3↑↑4, and the number of digits up to 3↑↑5 can be expressed.

  8. Solar-powered calculator - Wikipedia

    en.wikipedia.org/wiki/Solar-powered_calculator

    Solar calculators use liquid crystal displays, as they are power-efficient and capable of operating in the low-voltage range of 1.5–2 V. Some models also use a light pipe to converge light onto the solar cells. [3] However, solar calculators may not work well in indoor conditions under ambient lighting if sufficient light is not available. [4 ...

  9. Fold change - Wikipedia

    en.wikipedia.org/wiki/Fold_change

    For example, on a plot axis showing log 2 fold changes, an 8-fold increase will be displayed at an axis value of 3 (since 2 3 = 8). However, there is no mathematical reason to only use logarithm to base 2, and due to many discrepancies in describing the log 2 fold changes in gene/protein expression , a new term " loget " has been proposed.