SessionTime[] gives the total number of seconds of real time that have elapsed since the beginning of your Mathematica session.

ShowShortBoxForm is an option for cells that specifies whether box expressions, which are used to represent two-dimensional forms in a cell, are displayed in a more compact ...

SpellingDictionaries -> {opt_1 -> val_1, opt_2 -> val_2, ...} is a global option that specifies settings for spell checking.

WindowFrame is a notebook option that specifies the type of frame to draw around the window in which the notebook is displayed on the screen.

Once the installation of Mathematica 8 is complete, you will be presented with the Wolfram Product Activation dialog. There are three methods to activate Mathematica: online ...

Mathematica usually works by taking whatever input you give, and then processing it. Sometimes, however, you may want to have a program you write explicitly request more ...

MathLink connections between Mathematica sessions. This starts up a link on port number 8000. This connects to the link on port 8000.

When numerically solving Hamiltonian dynamical systems it is advantageous if the numerical method yields a symplectic map. If the Hamiltonian can be written in separable ...

Mathematica has many powerful features which enable you to solve many kinds of equations.

CrossProduct[v_1, v_2] gives the cross product of the two 3-vectors v_1, v_2 in the default coordinate system. CrossProduct[v_1, v_2, coordsys] gives the cross product of v_1 ...