In a statement like x^4+x^2>0, Mathematica treats the variable x as having a definite, though unspecified, value. Sometimes, however, it is useful to be able to make ...

Structural operations on polynomials. Here is a polynomial in one variable. Expand expands out products and powers, writing the polynomial as a simple sum of terms.

MeanChromatic is an interval list for the Mean Chromatic scale.

[1] Butcher, J. C. The Numerical Analysis of Ordinary Differential Equations: Runge-Kutta and General Linear Methods. John Wiley and Sons, 1987. [2] Iserles, A. A First ...

ConvertTemperature[temp, oldscale, newscale] converts temperature temp from temperature scale oldscale to scale newscale.

Mathematica serialized package format. Used for the distribution of Mathematica packages. Stores arbitrary Mathematica expressions in a serialized format optimized for fast ...

Encode["source", " dest"] writes an encoded version of the file source to the file dest. << dest decodes the file before reading its contents. Encode["source", " dest", " ...

OpenAppend["file"] opens a file to append output to it, and returns an OutputStream object.

OpenRead["file"] opens a file to read data from, and returns an InputStream object.

ToCharacterCode["string"] gives a list of the integer codes corresponding to the characters in a string. ToCharacterCode["string", " encoding"] gives integer codes according ...