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A multiple-vortex tornado outside of Dallas, Texas on April 2, 1957. Since Dallas lies at the lower end of the "Tornado Alley", tornadoes have on occasion been a threat to the city. Most tornadoes hit the city during the months of April and May. [15] Dallas was hit by a powerful tornado on April 2, 1957; the tornado was later rated F3. [16]
The Dallas-Fort Worth airport measured temperatures at or below freezing for a total of 296 consecutive hours (12 days). Snow which fell on December 14 and 15 across northern Texas stayed on the ground until New Year's Day of 1984. [19] February 2021 was another record-setting cold snap.
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 ...
In the 1980s Dallas was a real estate hotbed, with the increasing metropolitan population bringing with it a demand for new housing and office space. Several of Downtown Dallas' largest buildings are the fruit of this boom, but over-speculation, the savings and loan crisis and an oil bust brought the 1980s building boom to an end for Dallas as ...
Excel was founded in 1988 by Dallas entrepreneur Kenny Troutt and Steve Smith, as a long-distance reseller in the US telecom sector at the birth of telecom deregulation. In the mid-1980s, Smith developed an interest in the network marketing business model.
From 1998 until 2005 (the most recent year with available statistics), the city of Dallas has had the highest overall crime rate for the nine United States cities with over 1 million people. [15] Violent crime in Dallas was also ranked #1 during the same time period. Murders peaked at 500 in 1991.
If-then-else flow diagram A nested if–then–else flow diagram. In computer science, conditionals (that is, conditional statements, conditional expressions and conditional constructs) are programming language constructs that perform different computations or actions or return different values depending on the value of a Boolean expression, called a condition.
As the Federal Government's presence in Dallas grew over 310,000 square feet (29,000 m 2) were leased in surrounding buildings to house larger agencies. The U.S. District and Circuit Courts moved to the new Earle Cabell Federal Building and Courthouse in 1971, following the departure of the Post Office regional headquarters in the same year. [3]