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  2. List of open-source software for mathematics - Wikipedia

    en.wikipedia.org/wiki/List_of_open-source...

    SageMath is designed partially as a free alternative to the general-purpose mathematics products Maple and MATLAB. It can be downloaded or used through a web site. SageMath comprises a variety of other free packages, with a common interface and language. SageMath is developed in Python.

  3. Exponentiation by squaring - Wikipedia

    en.wikipedia.org/wiki/Exponentiation_by_squaring

    The method is based on the observation that, for any integer >, one has: = {() /, /,. If the exponent n is zero then the answer is 1. If the exponent is negative then we can reuse the previous formula by rewriting the value using a positive exponent.

  4. Rewriting - Wikipedia

    en.wikipedia.org/wiki/Rewriting

    Such methods may be achieved by rewriting systems (also known as rewrite systems, rewrite engines, [1] [2] or reduction systems). In their most basic form, they consist of a set of objects, plus relations on how to transform those objects. Rewriting can be non-deterministic. One rule to rewrite a term could be applied in many different ways to ...

  5. Matrix exponential - Wikipedia

    en.wikipedia.org/wiki/Matrix_exponential

    A solution to this can be obtained by integrating and multiplying by to eliminate the exponent in the LHS. Notice that while e A t {\displaystyle e^{{\textbf {A}}t}} is a matrix, given that it is a matrix exponential, we can say that e A t e − A t = I {\displaystyle e^{{\textbf {A}}t}e^{-{\textbf {A}}t}=I} .

  6. Puiseux series - Wikipedia

    en.wikipedia.org/wiki/Puiseux_series

    If K is a field (such as the complex numbers), a Puiseux series with coefficients in K is an expression of the form = = + / where is a positive integer and is an integer. In other words, Puiseux series differ from Laurent series in that they allow for fractional exponents of the indeterminate, as long as these fractional exponents have bounded denominator (here n).

  7. Nondimensionalization - Wikipedia

    en.wikipedia.org/wiki/Nondimensionalization

    The factor 2 is present so that the solutions can be parameterized in terms of ζ. In the context of mechanical or electrical systems, ζ is known as the damping ratio , and is an important parameter required in the analysis of control systems . 2 ζ is also known as the linewidth of the system.

  8. Exponentiation - Wikipedia

    en.wikipedia.org/wiki/Exponentiation

    Raising 0 to a negative exponent is undefined but, in some circumstances, it may be interpreted as infinity (). [ 26 ] This definition of exponentiation with negative exponents is the only one that allows extending the identity b m + n = b m ⋅ b n {\displaystyle b^{m+n}=b^{m}\cdot b^{n}} to negative exponents (consider the case m = − n ...

  9. HP 35s - Wikipedia

    en.wikipedia.org/wiki/HP_35s

    The HP 35s (F2215A) is a Hewlett-Packard non-graphing programmable scientific calculator. Although it is a successor to the HP 33s, it was introduced to commemorate the 35th anniversary of the HP-35, Hewlett-Packard's first pocket calculator (and the world's first pocket scientific calculator).