Vocabulary
namespaces

Inputs
na number
variablea variable, by convention a symbol


Outputs
None

Word description
Adds n to the value of the variable. A variable value of f is interpreted as being zero.

Side effects
Modifies variable

Examples
USING: namespaces prettyprint ; IN: scratchpad SYMBOL: foo 1 foo +@ 10 foo +@ foo get .
11


Definition