Function isNumeric #

Test whether a value is an numeric value.

The function is evaluated element-wise in case of Array or Matrix input.

Syntax #

math.isNumeric(x)

Parameters #

Parameter Type Description
x * Value to be tested

Returns #

Type Description
boolean Returns true when x is a number, BigNumber, Fraction, or boolean. Returns false for other types. Throws an error in case of unknown types.

Examples #

math.isNumeric(2);                     // returns true
math.isNumeric(0);                     // returns true
math.isNumeric(math.bignumber(500));   // returns true
math.isNumeric(math.fraction(4));      // returns true
math.isNumeric(math.complex('2-4i');   // returns false
math.isNumeric('3');                   // returns false
math.isNumeric([2.3, 'foo', false]);   // returns [true, false, true]

See also #

isZero, isPositive, isNegative, isInteger

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