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Mathomatic〔FSF Free Software Directory entry ()〕 is a free, portable, general-purpose computer algebra system (CAS) that can symbolically solve, simplify, combine, and compare algebraic equations, and can perform complex number, modular, and polynomial arithmetic, along with standard arithmetic. It does some symbolic calculus (derivative, extrema, Taylor series, and polynomial integration and Laplace transforms), numerical integration, and handles all elementary algebra except logarithms. Trigonometric functions can be entered and manipulated using complex exponentials, with the GNU m4 preprocessor. Not currently implemented are general functions like ''f''(''x''), arbitrary-precision and interval arithmetic, and matrices. ==Features== Mathomatic excels at solving, differentiating, simplifying, calculating, and visualizing elementary algebra.〔 It also does summations, products, and automated display of calculations of any length by plugging sequential or test values into any formula, then approximating and simplifying before display. Intermediate results (showing the work) may be displayed by previously typing "set debug 1" (see the session example); this works for solving and almost every command in Mathomatic. "set debug 2" reveals even more details about the work done. The software does not include a GUI except with the Mathomatic trademark authorized, versions for smartphones and tablets running iOS〔 or Android.〔 The free Mathomatic software, available on the official Mathomatic website,〔 is authorized for use in any other type of software, due to its permissive free software license (GNU LGPL). It is available as a free software library, and as a free console mode application that uses a color command-line interface with pretty-print output that runs in a terminal emulator under any operating system.〔 The console interface is very simple and requires little more than learning the basic algebra notation to get started. All input and output is line-at-a-time ASCII text. By default, input is standard input and output is standard output. Mathomatic is typically compiled with editline or GNU readline for easier input. There is no programming capability; the interpreter works like an algebraic calculator. Expressions and equations are entered in standard algebraic infix notation. Operations are performed on them by entering simple English commands. Because all numeric arithmetic is double precision floating point, and round-off error is not tracked, Mathomatic is not suitable for applications requiring high precision, such as astronomical calculations. It is useful for symbolic-numeric calculations of about 14 decimal digits accuracy, although many results will be exact, if possible. Mathomatic can be used as a floating point or integer arithmetic code generating tool, simplifying and converting equations into optimized assignment statements in the Python, C, and Java programming languages. The output can be made compatible with most other mathematics programs, except TeX and MathML format input/output are currently not available. The ASCII characters that are allowed in Mathomatic variable names is configurable, allowing TeX format variable names. The Mathomatic source code can be compiled as a symbolic math library with a very simple API, which can be linked to C compatible programs that need to use the Mathomatic symbolic math engine. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Mathomatic」の詳細全文を読む スポンサード リンク
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