Around 1870, Marius Sophus Lie realized that many of the methods for solving differential equations could be unified using group theory. Lie symmetry methods are central to ...

VolatilitySystem

SQLColumnInformation[conn] returns a list of information about the columns in an SQL connection.

MeanTest[list, \[Mu]_0] performs a test with null hypothesis \[Mu] = \[Mu]_0.

Mathematica 8 adds major new areas, including probability and statistics, graphs and networks, computational finance, control systems, wavelet analysis, and group theory. ...

NumberQ[expr] gives True if expr is a number, and False otherwise.

Plots of data based on measurements often have vertical lines or intervals centered at the points to indicate the associated error estimates. Mathematica lets you add such ...

Floor[x] gives the greatest integer less than or equal to x. Floor[x, a] gives the greatest multiple of a less than or equal to x.

Im[z] gives the imaginary part of the complex number z.

Re[z] gives the real part of the complex number z.