Select (Built-in Mathematica Symbol)

Select[list, crit] picks out all elements e_i of list for which crit[e_i] is True. Select[list, crit, n] picks out the first n elements for which crit[e_i] is True.

Mathematical Constants (Mathematica Guide)

Mathematica incorporates the latest algorithms—some original to Wolfram Research—for evaluating mathematical constants to any number of digits of precision. For basic ...

AverageDirectionalMovementIndexRating (Mathematica Indicator)

AverageDirectionalMovementIndexRating

Binarize (Built-in Mathematica Symbol)

Binarize[image] creates a binary image from image by replacing all values above a globally determined threshold with 1 and others with 0.Binarize[image, t] creates a binary ...

OnBalanceVolume (Mathematica Indicator)

OnBalanceVolume

Colorize (Built-in Mathematica Symbol)

Colorize[m] generates an image from an integer matrix m, using colors for positive integers and black for non-positive integers.Colorize[image] replaces intensity values in ...

Processing Textual Data (Mathematica Guide)

Mathematica has uniquely flexible capabilities for processing large volumes of textual data. Most often data represented as a string is converted to lists or other constructs ...

D (Built-in Mathematica Symbol)

D[f, x] gives the partial derivative \[PartialD]f/\[PartialD]x. D[f, {x, n}] gives the multiple derivative \[PartialD]^n f/\[PartialD]x^n. D[f, x, y, ...] differentiates f ...

Variables in Pure Functions and Rules (Mathematica Tutorial)

Module and With allow you to give a specific list of symbols whose names you want to treat as local. In some situations, however, you want to automatically treat certain ...

Use a Rule with an Expression More Than ... (Mathematica How To)

You may find it useful to use one or more rules with an expression several times. Mathematica provides functions that let you iterate when using rules with expressions. In ...