How to use the iszero method in Julia
Overview
The iszero(x) method can be used to check if the given value is
Syntax
iszero(x) -> Bool
Julia iszero function Syntax
Parameter
This method takes the parameter, x, which represents the value that is to be checked. The argument can be a numeric value or an array.
Return value
This method returns true if the provided value is equal to 0. Otherwise, false is returned.
Code
The code below demonstrates how to use the iszero method.
## find iszero of 0println( "iszero(0) => $(isone(0))") # returns true## find iszero of 0.0println( "iszero(0.0) => $(iszero(0.0))") # returns true## find iszero of [0, false]]println( "iszero([0, false]]) => $(iszero([0, false]))") # returns true## find iszero of [0, true]println( "iszero([0, true]) => $(iszero([0, true]))") # returns false
Explanation
In the code above, we do the following:
- Line 2: We use the
iszeromethod with(0)as an argument. Theiszero(0)will returntrue.
- Line 5: We use the
iszeromethod with(0.0)as an argument. Theiszero(0.0)will returntrue.
- Line 8: We use the
iszeromethod with an array ([0,false]) as an argument. All the values in the array are evaluated to0sotrueis returned.
- Line 11: We use the
iszeromethod with an array ([0,true]) as an argument. Thetrueelement in the array will be not equal to0on converting to a numeric value. So theiszeromethod returnsfalseas a result.
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