On (Built-in Mathematica Symbol)

On[symbol::tag] switches on a message, so that it can be printed. On["name"] switches on a named group of messages.On[s] switches on tracing for the symbol s. On[m_1, m_2, ...

PrintingOptions (Built-in Mathematica Symbol)

PrintingOptions -> {opt_1 -> val_1, opt_2 -> val_2, ...} is an option that specifies settings for printing.

RandomReal (Built-in Mathematica Symbol)

RandomReal[] gives a pseudorandom real number in the range 0 to 1. RandomReal[{x_min, x_max}] gives a pseudorandom real number in the range x_min to x_max. RandomReal[x_max] ...

Replace (Built-in Mathematica Symbol)

Replace[expr, rules] applies a rule or list of rules in an attempt to transform the entire expression expr. Replace[expr, rules, levelspec] applies rules to parts of expr ...

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.

TextCell (Built-in Mathematica Symbol)

TextCell["string"] gives a text cell that can appear in a Mathematica notebook.TextCell["string", " style"] gives a text cell with the specified style.

ToExpression (Built-in Mathematica Symbol)

ToExpression[input] gives the expression obtained by interpreting strings or boxes as Mathematica input. ToExpression[input, form] uses interpretation rules corresponding to ...

VectorQ (Built-in Mathematica Symbol)

VectorQ[expr] gives True if expr is a list or a one-dimensional SparseArray object, none of whose elements are themselves lists, and gives False otherwise. VectorQ[expr, ...

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 ...

Digits in Numbers (Mathematica Tutorial)

Converting between numbers and lists or strings of digits. Here is the list of base 16 digits for an integer. This gives a list of digits, together with the number of digits ...