←
UpSet
/
Reference of Built-in Symbols
/
Assignments
/
Forms of Assignment
/
UpSetDelayed
/
UpSetDelayed (
^:=
)
WMA link
UpSetDelayed
[
expression
,
value
]
expression
^:=
value
assigns
expression
to the value of
f
[
x
] (without evaluating
expression
), associating the value with
x
.
a[b] ^:= x
x = 2;
a[b]
UpValues[b]
←
UpSet