ReplaceAllUnheld[expr, rules] applies a rule or list of rules in an attempt to transform each subpart of expr that would be automatically evaluated.

New function HornerForm has been added to the built-in Mathematica kernel.

MathMLForm[expr] prints as a MathML form of expr.

Real is the head used for real (floating-point) numbers.

Mathematica is a large and complex software system. Although strongly not supported for production purposes, it is sometimes instructive to "spelunk" in the system, looking ...

Mathematica provides various ways to set up conditionals, which specify that particular expressions should be evaluated only if certain conditions hold. Conditional ...

Basic 3D plotting function. This makes a three-dimensional plot of the function sin(xy). Three-dimensional graphics can be rotated in place by dragging the mouse inside of ...

GraphData[name] gives a graph with the specified name.GraphData[name, " property"] gives the value for the specified property for a named graph.GraphData["class"] gives a ...

MIME type: application/json. Data interchange format. Commonly used in web service implementations. Contains collections of unordered name-value pairs or ordered values. JSON ...

A "How to" describes how to carry out particular tasks with Mathematica, giving step-by-step instructions for common cases.