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Question by Karina_22 · Jun 05, 2014 at 01:36 AM · type

Hi because I get an error like this.....help

the error is this BCE0004:Ambiguous reference 'Abs': UnityEngine.Math.Abs(int), Unity.Engine.Mathf.Abs(float)

I leave the code

 function signedSqrt(x){
    var r = Mathf.Sqrt(Mathf.Abs(x));
    if( x < 0 ){
       return -r;
    } else {
       return r;
    }
 }
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avatar image Jeff-Kesselman · Jun 05, 2014 at 01:37 AM 0
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I edited your code this once to make it readable.

Please format it with the code block like I did in the future, or your posts may get rejected as unreadable.

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Answer by Jeff-Kesselman · Jun 05, 2014 at 01:39 AM

Its likely because you do not have a type for your X parameter, so it doesn't know which mathematical Abs to use. Try this:

 function signedSqrt(x:float):float{
    var r:float = Mathf.Sqrt(Mathf.Abs(x));
    if( x < 0 ){
       return -r;
    } else {
       return r;
    }
 }

In general, untyped code is bad.

Its much easier to make errors with and it is harder for the computer to execute. Unless there is a reason why you can't know the type of a parameter or variable at compile time, always type label it.

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Answer by Karina_22 · Jun 05, 2014 at 02:07 AM

Thanks and I run I can help what happens is k'm doing a simulator of a boat and need to make the boat moves up and down simulating waves dijieron leaving me using the Mathf.sin but I get no help please. sorry I speak English not much ...

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