How do you verify that the two values are different?

On 8 January 2016 at 13:34, Naresha K. <> wrote:
Value 1.9 will be of type BigDecimal.
Why are you using D?

On Fri, Jan 8, 2016 at 5:45 PM, Alberto Vilches <> wrote:
Hi everybody! We have an issue in our application, and we realized these two lines have differents results. We wonder why because we think it should calls to the DefaultGroovyMethods.asType(Number self, Class<T> c). But it seems only the explicit call to "as" finally calls to the asType and the casting do a different thing (just a new BigDecimal(1.9D), but we wonder in which part of Groovy is happening)

(BigDecimal)1.9D  // "1.899999999999999911182158029987476766109466552734375" ->
1.9D as BigDecimal  // "1.9"

In fact, we tried to put these two lines in the Groovy console and see the AST in all the phases. But in all of them shows the same code:

   public java.lang.Object run() {
        ((1.9) as java.math.BigDecimal)
        return ((1.9) as java.math.BigDecimal)

Somebody please could give some light? Thank you very much and happy new year :)

Un saludo.
Alberto Vilches