Attributes (Mathematica Tutorial)

Definitions such as f[x_]=x^2 specify values for functions. Sometimes, however, you need to specify general properties of functions, without necessarily giving explicit ...

Unset (Built-in Mathematica Symbol)

lhs =. removes any rules defined for lhs.

Assignments (Mathematica Guide)

Mathematica's symbolic architecture supports a highly generalized notion of assignment, in which you can specify a transformation for any class of expressions defined by a ...

Low-Level System Optimization (Mathematica Guide)

Update (Built-in Mathematica Symbol)

Update[symbol] tells Mathematica that hidden changes have been made which could affect values associated with a symbol. Update[] specifies that the value of any symbol could ...

Tuning & Debugging (Mathematica Guide)

Mathematica's highly optimized architecture makes it easy to create programs that are both elegant and efficient. Its symbolic character lets you immediately run and test ...

Attributes (Mathematica Guide)

Any Mathematica symbol can have both a variety of types of values, and a variety of independently settable attributes that define overall aspects of its behavior.

Remove (Built-in Mathematica Symbol)

Remove[symbol_1, ...] removes symbols completely, so that their names are no longer recognized by Mathematica. Remove["form_1", "form_2", ...] removes all symbols whose names ...

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 ...

Symbol Handling (Mathematica Guide)

Mathematica symbols are the ultimate atoms of symbolic data. Every symbol has a unique name, exists in a certain Mathematica context or namespace, and can have a variety of ...