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Oct 20, 2012 · The minus sign has three main uses in mathematics: The subtraction operator: A binary operator to indicate the operation of subtraction, as in $5 − 3 = 2$. Subtraction is the inverse of addition. Directly in front of a number and when it is not a subtraction operator it means a negative number. For instance $−5$ is negative $5$.
Negative is more appropriate than minus if it comes to denote the negative term like -0.8 . While minus is used as a binary operator like (a-b) a minus b .
Feb 16, 2019 · In the set $\mathbb{C}$ of complex numbers, the minus sign "-" may be used for following: As a unary operator $-_u$, given a complex number $a$, $-_ua$ is the unique number (called the negative of a) $c$ such that $a+c=c+a=0$, where $0$ is the additive identity.
Punctuation and Arithmetic Symbols The symbols used in ASCII are also mapped to their Urdu equivalents (same symbols in many cases) to provide the symbol coverage for Urdu and conform to existing ASCII. Table 1 below gives explanations for these symbols.
- Alternative Symbols
- Subtraction as Adding The Negative
- More on The Raised Minus
This notation looks like “a−b=−b” or “2 + ⁻3 = ⁻1”. It isn’t the only notation that’s been used. You may recall that two weeks ago we saw that DeMorgan represented negative numbers by a bar over the number, as seen here (p. 46): His 4¯¯¯ wouldn’t work so well as an operation, but was a reasonable attempt to distinguish negation from subtraction. Th...
This definition of subtraction as “adding the opposite” can’t be used before students have learned about negatives, or in contexts dealing only with natural numbers. There, we define subtraction as the inverse operation of addition. That is, the difference a−b=c is the (unique) number c such that a=b+c. Subtraction “finds the missing addend”. This ...
I did some searching of my own, hoping to find examples of the raised negative in modern materials; but at the time that was hard to find; the only source I found no longer exists. It is easier to find references to it today; one reference I find to it, here, says Wikipedia mentions it (here) without citation. American teaching standards don’t ment...
Jun 13, 2017 · Why is it that sometimes we hear the symbol (-) referred to as “minus” and other times as “negative”? For example: In the second equation we use the word “Minus” when referring to the...
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Aug 9, 2024 · You reverse the inequality sign only when you multiply or divide by a negative number. For example, if you start with 10 > 4 and then multiply both sides by -2, you would get -20 > - 8 which is not true. So you have to flip the inequality sign to make the statement true: -20 < -8.
