SquareWave (Built-in Mathematica Symbol)

SquareWave[x] gives a square wave that alternates between +1 and -1 with unit period.SquareWave[{y_1, y_2}, x] gives a square wave that alternates between y_1 and y_2 with ...

StreamColorFunction (Built-in Mathematica Symbol)

StreamColorFunction is an option for StreamPlot and related functions that specifies a function to apply to determine colors along streamlines.

StringDrop (Built-in Mathematica Symbol)

StringDrop["string", n] gives " string" with its first n characters dropped. StringDrop["string", -n] gives " string" with its last n characters dropped. StringDrop["string", ...

Trigger (Built-in Mathematica Symbol)

Trigger[Dynamic[u]] represents a trigger that can be pressed to make the dynamically updated value of u be continually increased with time from 0 to 1. Trigger[Dynamic[u], ...

VarianceEstimatorFunction (Built-in Mathematica Symbol)

VarianceEstimatorFunction is an option for LinearModelFit and NonlinearModelFit which specifies the variance estimator to use.

Defining Variables (Mathematica Tutorial)

When you do long calculations, it is often convenient to give names to your intermediate results. Just as in standard mathematics, or in other computer languages, you can do ...

Differentiation (Mathematica Tutorial)

Partial differentiation operations. This gives ( ∂ ) / ( ∂x ) x^n. This gives the third derivative.

Elementary Transcendental Functions (Mathematica Tutorial)

Elementary transcendental functions. Mathematica gives exact results for logarithms whenever it can. Here is log_21024. You can find the numerical values of mathematical ...

Entering Tables and Matrices (Mathematica Tutorial)

The Mathematica front end provides an Insert > Table/Matrix submenu for creating and editing arrays with any specified number of rows and columns. Once you have such an ...

Error and Interrupt Handling (Mathematica Tutorial)

When you are putting and getting data via MathLink various kinds of errors can occur. Whenever any error occurs, MathLink goes into a completely inactive state, and all ...