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The − Symbol in Mathematics: The Minus Sign. Among the most universally recognized symbols in mathematics is the − symbol, representing the "Minus Sign". This simple yet profound symbol finds application across a spectrum of mathematical operations and contexts.
Learn the various meanings and uses of the word sign as a noun and a verb, with synonyms, examples, and word history. Find out how to distinguish sign from related words like mark, token, and symptom.
- DictionarySign/sīn/
noun
- 1. an object, quality, or event whose presence or occurrence indicates the probable presence or occurrence of something else: "flowers are often given as a sign of affection"
- 2. a gesture or action used to convey information or instructions: "she gave him the thumbs-up sign"
verb
- 1. write one's name on (a letter, card, or similar item) to identify oneself as the writer or sender: "the card was signed by the whole class"
- 2. use gestures to convey information or instructions: "she signed to her husband to leave the room"
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- Less Than and Greater Than
- Or Equal to ...
- Why Use them?
- Changing Sides
- An Example Using Algebra
- GeneratedCaptionsTabForHeroSec
The "less than" sign and the "greater than" sign look like a "V" on its side, don't they? To remember which way around the "<" and ">" signs go, just remember: 1. BIG > small 2. small < BIG Greater Than Symbol: BIG > small
Sometimes we know a value is smaller, but may also be equal to! To show this, we add an extra line at the bottom of the "less than" or "greater than" symbol like this:
Because there are things we do not know exactly ... So we have ways of saying what we doknow (which may be useful!)
We saw in that previous example that when we change sides we flipped the symbol as well. Here is another example using "≥" and "≤":
OK, this example may be complicated if you don't know Algebra, but I thought you might like to see it anyway:
Learn how to use the symbols =, ≠, >, < and ≥ to compare numbers and values. See examples, definitions and tips to remember the meanings and order of the symbols.
The minus–plus sign, ∓, is generally used in conjunction with the ± sign, in such expressions as x ± y ∓ z, which can be interpreted as meaning x + y − z or x − y + z (but not x + y + z or x − y − z). The ∓ always has the opposite sign to ±.
Learn the meaning of sign as a verb and a noun in English, with different senses and usage. Find out how to write, communicate, or show something with sign, and see examples and idioms.
Learn the meaning, pronunciation and examples of the word sign in English. Find out how to use sign as a noun for different types of signs, such as indications, warnings, symbols, gestures and star signs.
