Function isZero #

Test whether a value is zero. The function can check for zero for types number, BigNumber, Fraction, Complex, and Unit.

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

Syntax #


Parameters #

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

Returns #

Type Description
boolean Returns true when x is zero. Throws an error in case of an unknown data type.

Examples #

math.isZero(0);                     // returns true
math.isZero(2);                     // returns false
math.isZero(0.5);                   // returns false
math.isZero(math.bignumber(0));     // returns true
math.isZero(math.fraction(0));      // returns true
math.isZero(math.fraction(1,3));    // returns false
math.isZero(math.complex('2 - 4i'); // returns false
math.isZero(math.complex('0i');     // returns true
math.isZero('0');                   // returns true
math.isZero('2');                   // returns false
math.isZero([2, 0, -3]');           // returns [false, true, false]

See also #

isNumeric, isPositive, isNegative, isInteger

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