The meaning of DEFINE is to determine or identify the essential qualities or meaning of. How to use define in a sentence.

More formally, a mathematical symbol is any grapheme used in mathematical formulas and expressions. As formulas and expressions are entirely constituted with symbols of various types, many symbols are needed for expressing all mathematics.

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DEFINE definition: 1. to say what the meaning of something, especially a word, is: 2. to explain and describe the…. Learn more.

∞ is a symbol used to represent unending amounts. Either plus or minus depending on the situation. If y= [+|-]x then x is either positive or negative depending on the situation. y= [+|-]x y …

Typographical symbols and punctuation marks are marks and symbols used in typography with a variety of purposes such as to help with legibility and accessibility, or to identify special cases. This list gives those most commonly encountered with Latin script. For a far more comprehensive list of symbols and signs, see List of Unicode characters.

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As well as the familiar equals sign (=) it is also very useful to show if something is not equal to (≠) greater than (>) or less than (<) These are the important signs to know: The "less than" sign …

= (the equals sign) means “is the same as” and was first introduced in the 1557 book The Whetstone of Witte by Robert Recorde (c. 1510-1558).