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  1. 2 - Wikipedia

    2 (two) is a number, numeral and digit. It is the natural number following 1 and preceding 3. It is the smallest and the only even prime number. Because it forms the basis of a duality, it has …

  2. Solve - Step-by-Step Math Problem Solver

    QuickMath will automatically answer the most common problems in algebra, equations and calculus faced by high-school and college students. The algebra section allows you to expand, …

  3. Desmos | Graphing Calculator

    Explore math with our beautiful, free online graphing calculator. Graph functions, plot points, visualize algebraic equations, add sliders, animate graphs, and more.

  4. Web 2.0 scientific calculator

    Free Online Scientific Notation Calculator. Solve advanced problems in Physics, Mathematics and Engineering. Math Expression Renderer, Plots, Unit Converter, Equation Solver, Complex …

  5. Symbolab – Trusted Online AI Math Solver & Smart Math Calculator

    Instead of following rigid, pre-programmed steps, Symbolab uses AI to truly understand each problem, choosing solutions that teach, not just compute.

  6. 2 (number) - Simple English Wikipedia, the free encyclopedia

    2 (Two; / ˈtuː / (listen)) is a number, numeral, and glyph. It is the number after 1 (one) and the number before 3 (three). In Roman numerals, it is II.

  7. 2 (number) - New World Encyclopedia

    The glyph currently used in the Western world to represent the number 2 traces its roots back to the Brahmin Indians, who wrote 2 as two horizontal lines. (It is still written that way in modern …

  8. Exponents - Math is Fun

    Another Way of Writing It Sometimes people use the ^ symbol (above the 6 on your keyboard), as it is easy to type. Example: 2^4 is the same as 24 2^4 = 2 × 2 × 2 × 2 = 16

  9. 2 - Wiktionary, the free dictionary

    Jul 18, 2025 · (phonetics, often superscript) the pitch of a tone, whose value depends on local convention (e.g. nearly as high or as low as 1, if four or more numbers are used; mid pitch if …

  10. 2 -- from Wolfram MathWorld

    The number two (2) is the second positive integer and the first prime number. It is even, and is the only even prime (the primes other than 2 are called the odd primes). The number 2 is also …