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2. Glossary of mathematical symbols - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_mathematical...

   3. Also used in place of \ for denoting the set-theoretic complement; see \ in § Set theory. × (multiplication sign) 1. In elementary arithmetic, denotes multiplication, and is read as times; for example, 3 × 2. 2. In geometry and linear algebra, denotes the cross product. 3.

3. List of letters used in mathematics, science, and engineering

   en.wikipedia.org/wiki/List_of_letters_used_in...

   𝟘 𝟙 𝟚 𝟛 𝟜 𝟝 𝟞 𝟟 𝟠 𝟡 Latin. Greek Other scripts. Hebrew. א: Cardinality of infinite sets: ב Cardinality of infinite sets: ג ...

4. LeapFrog Enterprises - Wikipedia

   en.wikipedia.org/wiki/LeapFrog_Enterprises

   This is an accepted version of this page This is the latest accepted revision, reviewed on 23 February 2025. American educational entertainment and electronics company "LeapFrog" redirects here. For the children's game, see Leapfrog. For other uses, see Leapfrog (disambiguation). This article needs to be updated. Please help update this article to reflect recent events or newly available ...

5. Greek letters used in mathematics, science, and engineering

   en.wikipedia.org/wiki/Greek_letters_used_in...

   The Bayer designation naming scheme for stars typically uses the first Greek letter, α, for the brightest star in each constellation, and runs through the alphabet before switching to Latin letters. In mathematical finance , the Greeks are the variables denoted by Greek letters used to describe the risk of certain investments.

6. Mathematical Alphanumeric Symbols - Wikipedia

   en.wikipedia.org/wiki/Mathematical_Alphanumeric...

   Mathematical Alphanumeric Symbols is a Unicode block comprising styled forms of Latin and Greek letters and decimal digits that enable mathematicians to denote different notions with different letter styles. The letters in various fonts often have specific, fixed meanings in particular areas of mathematics.

7. ∂ - Wikipedia

   en.wikipedia.org/wiki/%E2%88%82

   The symbol was introduced originally in 1770 by Nicolas de Condorcet, who used it for a partial differential, and adopted for the partial derivative by Adrien-Marie Legendre in 1786. [3] It represents a specialized cursive type of the letter d , just as the integral sign originates as a specialized type of a long s (first used in print by ...