LogicalExpand[expr] expands out logical combinations of equations, inequalities, and other functions.

MeanDeviation[list] gives the mean absolute deviation from the mean of the elements in list.

Converting between strings and lists of characters. This gives a list of the characters in the string. You can apply standard list manipulation operations to this list.

MathLink provides a mechanism through which programs can interact with Mathematica. Some typical uses of MathLink. MathLink provides a general interface for external programs ...

The replacement operator /. allows you to apply transformation rules to a specific expression. Often, however, you want to have transformation rules automatically applied ...

PrependTo[s, elem] prepends elem to the value of s, and resets s to the result.

Mathematica contains some powerful primitives for making structural changes to expressions. You can use these primitives both to implement mathematical properties such as ...

Mathematica allows you to specify in detail what should happen when you press Shift+Enter to evaluate a cell in a notebook, or Ctrl+Shift+Enter to evaluate an expression in ...

Mathematica provides a convenient collection of platform-independent functions for manipulating names of files and directories. These functions can also be used to assemble ...

Mathematica's unified symbolic document architecture makes it possible to have flowing text contain any kind of object—including math, graphics or dynamic elements.