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Changhua (Hokkien POJ: Chiong-hòa or Chiang-hòa), officially known as Changhua City, is a county-administered city and the county seat of Changhua County in Taiwan Province of the Republic of China. For many centuries the site was home to a settlement of Babuza people, a coastal tribe of Taiwanese aborigines.
The Changhua–Kaohsiung Viaduct (Chinese: 彰化－高雄高架橋) is the world's second longest bridge. [1] [2] [3] The bridge acts as an overland viaduct for part of the railway line of the Taiwan High Speed Rail network. Over 200 million passengers had been carried
By 2021, the number of new cases each year was decreasing by around 2% annually. [7][1] About 80% of people in many Asian and African countries test positive, while 5–10% of people in the United States test positive via the tuberculin test. [14] Tuberculosis has been present in humans since ancient times.
- History
- Plus Sign
- Minus Sign
- Use in Elementary Education
- Use as A Qualifier
- Uses in Computing
- Other Uses
- Character Codes
- Alternative Minus Signs
- Alternative Plus Sign
Though the signs now seem as familiar as the alphabet or the Hindu–Arabic numerals, they are not of great antiquity. The Egyptian hieroglyphic sign for addition, for example, resembled a pair of legs walking in the direction in which the text was written (Egyptiancould be written either from right to left or left to right), with the reverse sign in...
The plus sign (+) is a binary operator that indicates addition, as in 2 + 3 = 5. It can also serve as a unary operator that leaves its operand unchanged (+x means the same as x). This notation may be used when it is desired to emphasize the positiveness of a number, especially in contrast with the negative numbers (+5 versus −5). The plus sign can ...
The minus sign (−) has three main uses in mathematics: 1. The subtraction operator: a binary operator to indicate the operation of subtraction, as in 5 − 3 = 2. Subtraction is the inverse o😂f addition. ----# A prefix of a numeric constant. When it is placed immediately before an unsigned numeral, the combination names a negative number, the additi...
Some elementary teachers use raised minus signs before numbers to disambiguate them from the operation of subtraction.The same convention is also used in some computer languages. For example, subtracting −5 from 3 might be read as "positive three take away negative 5", and be shown as 1. 3 − −5 becomes 3 + 5 = 8, which can be read as: 1. +3 −1 (−5)...
When placed after a number, a plus sign can indicate an open range of numbers. For example, "18+" is commonly used as shorthand for "ages 18 and up". In grading systems (such as examination marks), the plus sign indicates a grade one level higher and the minus sign a grade lower. For example, B− ("B minus") is one grade lower than B. In some occasi...
As well as the normal mathematical usage, plus and minus signs may be used for a number of other purposes in computing. Plus and minus signs are often used in tree viewon a computer screen—to show if a folder is collapsed or not. In some programming languages, concatenation of strings is written "a" + "b", and results in "ab". In most programming l...
In physics, the use of plus and minus signs for different electrical charges was introduced by Georg Christoph Lichtenberg. In chemistry, superscripted plus and minus signs are used to indicate an ion with a positive or negative charge of 1 (e.g., NH+ 4). If the charge is greater than 1, a number indicating the charge is written before the sign (as...
U+002B + PLUS SIGNU+2212 − MINUS SIGNU+002D - HYPHEN-MINUSU+FE63 ﹣ SMALL HYPHEN-MINUSThere is a commercial minus sign, ⁒, which is used in Germany and Scandinavia. The symbol ÷ is used to denote subtraction in Scandinavia. The hyphen-minus symbol (-) is the form of hyphen most commonly used in digital documents. On most keyboards, it is the only character that resembles a minus sign or a dash so it is also used for these. The name ...
A Jewish tradition that dates from at least the 19th century is to write plus using the symbol ﬩. This practice was adopted into Israeli schools and is still commonplace today in elementary schools (including secular schools) but in fewer secondary schools. It is also used occasionally in books by religious authors, but most books for adults use th...
