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The leap year problem (also known as the leap year bug or the leap day bug) is a problem for both digital (computer-related) and non-digital documentation and data storage situations which results from errors in the calculation of which years are leap years, or from manipulating dates without regard to the difference between leap years and common years.
If data is a Series, then data['a'] returns all values with the index value of a. However, if data is a DataFrame, then data['a'] returns all values in the column(s) named a. To avoid this ambiguity, Pandas supports the syntax data.loc['a'] as an alternative way to filter using the index.
Microsoft Excel (using the default 1900 Date System) cannot display dates before the year 1900, although this is not due to a two-digit integer being used to represent the year: Excel uses a floating-point number to store dates and times. The number 1.0 represents the first second of January 1, 1900, in the 1900 Date System (or January 2, 1904 ...
Excel maintains 15 figures in its numbers, but they are not always accurate; mathematically, the bottom line should be the same as the top line, in 'fp-math' the step '1 + 1/9000' leads to a rounding up as the first bit of the 14 bit tail '10111000110010' of the mantissa falling off the table when adding 1 is a '1', this up-rounding is not undone when subtracting the 1 again, since there is no ...
month–month: the 1940 peak period was May–July; the peak period was May–July 1940; (but the peak period was May 1940 – July 1940 uses a spaced en dash; see below) In certain cases where at least one item on either side of the en dash contains a space, then a spaced en dash ( {{ snd }} ) is used.
The current average interest rate for a 30-year fixed mortgage is 7.04% for purchase and 7.02% for refinance, up 4 basis points from 7.00% for purchase and down 3 basis points from 7.05% for ...
A clash between BlackRock and the FDIC over the money manager’s holdings of US banks will play out in the waning days of President Joe Biden’s administration.
The search for a woman who is believed to have fallen into a sinkhole in western Pennsylvania has become a recovery effort after two treacherous days of digging through mud and rock produced no ...