If you make a definition like f[x_]:=x Sin[x], Mathematica will store the expression x Sin[x] in a form that can be evaluated for any x. Then when you give a particular value ...

Mathematica has three functions for generating pseudorandom numbers that are distributed uniformly over a range of values. Pseudorandom number generation. Generating tables ...

You can use files on your computer system to store definitions and results from Mathematica. The most general approach is to store everything as plain text that is ...

If you have a function defined in an external program, then what you need to do in order to make it possible to call the function from within Mathematica is to add ...

An important feature of string manipulation functions like StringReplace is that they handle not only literal strings but also patterns for collections of strings. This ...

The World Wide Web is increasingly being used for communication between applications. The programmatic interfaces made available over the web for application-to-application ...

NonlinearFit is replaced by FindFit. NonlinearRegress functionality is now available using the built-in function NonlinearModelFit.

There are many systems of units. The particular set of units that is used depends on factors as various as the field of study and the author's country of origin. The function ...

Images are an important standard data structure, tightly integrated with the Mathematica front end and kernel. Image objects are created by default when you import any file ...

Mathematica offers support for a large number of file formats for importing, exporting, or other operations. It has several standard locations where it looks for files. You ...