BUILT-IN MATHEMATICA SYMBOL
NumericQ
- An expression is considered a numeric quantity if it is either an explicit number or a mathematical constant such as Pi, or is a function that has attribute NumericFunction and all of whose arguments are numeric quantities.
- In most cases, NumericQ[expr] gives True whenever N[expr] would yield an explicit number.
NumericQ tests whether an object is a numeric quantity:
| Out[1]= |  |
In most cases, NumericQ[expr] gives True whenever N[expr] yields an explicit number:
| Out[2]= |  |
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