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  2. Indian numbering system - Wikipedia

    en.wikipedia.org/wiki/Indian_numbering_system

    For higher powers of ten, naming diverges. The Indian system uses names for every second power of ten: lakh (10 5), crore (10 7), arab (10 9), kharab (10 11), etc. In the two Western systems, long and short scales, there are names for every third power of ten. The short scale uses million (10 6), billion (10 9), trillion (10 12), etc.

  3. Computational physics - Wikipedia

    en.wikipedia.org/wiki/Computational_physics

    Due to the broad class of problems computational physics deals, it is an essential component of modern research in different areas of physics, namely: accelerator physics, astrophysics, general theory of relativity (through numerical relativity), fluid mechanics (computational fluid dynamics), lattice field theory/lattice gauge theory ...

  4. Hindu–Arabic numeral system - Wikipedia

    en.wikipedia.org/wiki/Hindu–Arabic_numeral_system

    The Hindu–Arabic system is designed for positional notation in a decimal system. In a more developed form, positional notation also uses a decimal marker (at first a mark over the ones digit but now more commonly a decimal point or a decimal comma which separates the ones place from the tenths place), and also a symbol for "these digits recur ad infinitum".

  5. Hindustani numerals - Wikipedia

    en.wikipedia.org/wiki/Hindustani_numerals

    Like many Indo-Aryan languages, Hindustani (Hindi-Urdu) has a decimal numeral system that is contracted to the extent that nearly every number 1–99 is irregular, and needs to be memorized as a separate numeral.

  6. List of unsolved problems in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Download as PDF; Printable version; In other projects ... [10] Can new solvents or ... List of unsolved problems in physics;

  7. Ansatz - Wikipedia

    en.wikipedia.org/wiki/Ansatz

    In physics and mathematics, an ansatz (/ ˈ æ n s æ t s /; German: ⓘ, meaning: "initial placement of a tool at a work piece", plural ansatzes [1] or, from German, ansätze / ˈ æ n s ɛ t s ə /; German: [ˈʔanzɛtsə] ⓘ) is an educated guess or an additional assumption made to help solve a problem, and which may later be verified to be part of the solution by its results.

  8. Katapayadi system - Wikipedia

    en.wikipedia.org/wiki/Katapayadi_system

    Kaṭapayādi system (Devanagari: कटपयादि, also known as Paralppēru, Malayalam: പരല്‍പ്പേര്) of numerical notation is an ancient Indian alphasyllabic numeral system to depict letters to numerals for easy remembrance of numbers as words or verses. Assigning more than one letter to one numeral and nullifying ...

  9. Fugacity - Wikipedia

    en.wikipedia.org/wiki/Fugacity

    Numerical example: Nitrogen gas (N 2) at 0 °C and a pressure of P = 100 atmospheres (atm) has a fugacity of f = 97.03 atm. [1] This means that the molar Gibbs energy of real nitrogen at a pressure of 100 atm is equal to the molar Gibbs energy of nitrogen as an ideal gas at 97.03 atm.