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* Normal human body temperature is 36.8 °C ±0.7 °C, or 98.2 °F ±1.3 °F. The commonly given value 98.6 °F is simply the exact conversion of the nineteenth-century German standard of 37 °C. Since it does not list an acceptable range, it could therefore be said to have excess (invalid) precision.
PHP also supports a C-like sprintf function. Code can be modularized into functions defined with keyword function. PHP supports an optional object oriented coding style, with classes denoted by the class keyword. Functions defined inside classes are sometimes called methods.
When converting a temperature interval between the Fahrenheit and Celsius scales, only the ratio is used, without any constant (in this case, the interval has the same numeric value in kelvins as in degrees Celsius): f °F to c °C or k K: c = k = f / 1.8 c °C or k K to f °F: f = c × 1.8 = k × 1.8
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The Windows Code Page 1252 was an extension of ISO/IEC 8859-1 (8859 Part 1 or "ISO Latin-1") standard, so it had the degree sign at the same code point, 0xB0. The code point in the older DOS Code Page 437 was 0xF8 (248 decimal); therefore, the Alt code used to enter the symbol directly from the keyboard is Alt + 2 4 8 .
However, in Dhahran, Saudi Arabia on July 8, 2003, the dew point was 35 °C (95 °F) while the temperature was 42 °C (108 °F), resulting in a heat index of 81 °C (178 °F). [8] On August 28, 2024, a weather station in southern Iran recorded a heat index of 82.2 °C (180.0 °F), which will be a new record if confirmed.
−69.6 °C: −93.3 °F: Coldest officially recorded air temperature in the Northern Hemisphere at Klinck AWS, Greenland (Denmark) on 1991-12-22 [18] 205.5 K: −67.7 °C: −89.9 °F: Coldest officially recorded air temperature on the Eurasian continent at Oymyakon, USSR on 6 February 1933 [19] [full citation needed] 210 K: −63 °C: −80 °F
Similar to the Kelvin scale, which was first proposed in 1848, [1] zero on the Rankine scale is absolute zero, but a temperature difference of one Rankine degree (°R or °Ra) is defined as equal to one Fahrenheit degree, rather than the Celsius degree used on the Kelvin scale.