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安裝中文字典英文字典辭典工具!
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- The Surprisingly Short History Of The Plus Sign - Fast Company
06-23-2014 DESIGN The Surprisingly Short History Of The Plus Sign Before the 16th century, most math equations were written as metered verse Thank god for graphic-design-inclined mathematicians
- What is addition? - KS1 Maths - Year 2 - BBC Bitesize
Discover addition and the equals symbol with this interactive article for Year 2 from BBC Bitesize
- Definition of plus sign | PCMag
What does plus sign actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia
- Addition - Wikipedia
Addition, usually denoted with the plus sign +, is one of the four basic operations of arithmetic, the other three being subtraction, multiplication, and division
- List of mathematical symbols - Simple English Wikipedia, the free . . .
This page provides a comprehensive list of mathematical symbols with their meanings and usage in mathematics
- Glossary of mathematical symbols - Wikipedia
Glossary of mathematical symbols A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula or a mathematical expression
- Sign (mathematics) - Wikipedia
The plus sign is predominantly used in algebra to denote the binary operation of addition, and only rarely to emphasize the positivity of an expression In common numeral notation (used in arithmetic and elsewhere), the sign of a number is often made explicit by placing a plus or a minus sign before the number
- Sign (mathematics) - Simple English Wikipedia, the free encyclopedia
In addition to the sign of a real number, the word sign is also used in various related ways throughout mathematics and other sciences: In graph theory, a signed graph is a graph in which each edge has been marked with a positive or negative sign
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