mathjs/docs/reference/functions/isPositive.md

Function isPositive

Test whether a value is positive: larger than zero. The function supports types number, BigNumber, Fraction, and Unit.

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

Syntax

math.isPositive(x)

Parameters

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

Returns

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

Examples

math.isPositive(3);                     // returns true
math.isPositive(-2);                    // returns false
math.isPositive(0);                     // returns false
math.isPositive(-0);                    // returns false
math.isPositive(0.5);                   // returns true
math.isPositive(math.bignumber(2));     // returns true
math.isPositive(math.fraction(-2, 5));  // returns false
math.isPositive(math.fraction(1,3));    // returns false
math.isPositive('2');                   // returns true
math.isPositive([2, 0, -3]');           // returns [true, false, false]

See also

isNumeric, isZero, isNegative, isInteger