NumberQ

Tersedia

Tests whether an expression is a (literal) numeric value.

Bentuk

NumberQ[expr]

Contoh terverifikasiNumberQ[3.5] → True NumberQ["abc"] → False

Jalankan ini di Qurak Cari di referensi

Topik

Atomic Elements Of Expressions - Numbers »
Expressions - Expression Testing »
Patterns - Restrictions on Patterns
Representation Of Numbers - Testing for Types
Testing Expressions - Numerical Properties

Terkait

NumericQ RealValuedNumberQ RealValuedNumericQ IntegerQ MachineNumberQ TrueQ Complexes Assuming Integer Complex IntegerDigits Precision

Semua 6300 fungsi · Pakai ini dari klien MCP