AtomQ

AtomQ(x)

is true if x is an atom (an object such as a number or string, which cannot be divided into subexpressions using ‘Part’).

Examples

>> AtomQ(x)
True

>> AtomQ(1.2)
True

>> AtomQ(2 + I)
True

>> AtomQ(2 / 3)
True

>> AtomQ(x + y)
False

Github

• Implementation of AtomQ