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Macaulay2 website
Macaulay2Doc
>
The Macaulay2 language
>
what a class is
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instance
instance -- whether something has a certain type
Description
instance(x,X)
-- tells whether
x
is an instance of the type
X
.
We say that x is an instance of X if X is the class of x, or a parent of the class of x, or a grandparent, and so on.
See also
class
-- class of an object
parent
-- parent type of an object
Ways to use
instance
:
"instance(Thing,Type)"
For the programmer
The object
instance
is
a
compiled function
.