Function isInteger #

Test whether a value is an integer number. The function supports number, BigNumber, and Fraction.

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

Syntax #

math.isInteger(x)

Parameters #

Parameter Type Description
x number | BigNumber | Fraction | Array | Matrix Value to be tested

Returns #

Type Description
boolean Returns true when x contains a numeric, integer value. Throws an error in case of an unknown data type.

Examples #

math.isInteger(2)                     // returns true
math.isInteger(0)                     // returns true
math.isInteger(0.5)                   // returns false
math.isInteger(math.bignumber(500))   // returns true
math.isInteger(math.fraction(4))      // returns true
math.isInteger('3')                   // returns true
math.isInteger([3, 0.5, -2])          // returns [true, false, true]
math.isInteger(math.complex('2-4i')   // throws an error

See also #

isNumeric, isPositive, isNegative, isZero

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