# FMX: can not -= \_x value past zero with small numbers

**URL:** <https://forum.kirupa.com/t/fmx-can-not--x-value-past-zero-with-small-numbers/56807>\
**Category:** flash\
**Created:** [July 7, 2004, 9:42pm UTC](https://forum.kirupa.com/t/fmx-can-not--x-value-past-zero-with-small-numbers/56807 "2004-07-07T21:42:54Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jimbo\_jones](https://avatars.discourse-cdn.com/v4/letter/j/d2c977/32.png) [@jimbo\_jones](https://forum.kirupa.com/u/jimbo_jones)\
**Post date:** [July 7, 2004, 9:42pm UTC](https://forum.kirupa.com/t/fmx-can-not--x-value-past-zero-with-small-numbers/56807/1 "2004-07-07T21:42:54Z")

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Hello,  
I am having a little trouble understanding why my code is not functioning. It works if I subtract and combine numbers above .1 but if I use a number below .1 the \_x and \_y values stop at 0. I would like the \_x and \_y values to go into the negative. I am using Flash MX.

function movePastCorner(mc){  
mc.\_x = 2;  
mc.\_y = 2;  
mc.onEnterFrame = function(){  
this.\_x -= 0.01;  
this.\_y -= 0.02;  
trace("X = "+this.\_x);  
trace(“Y = “+this.\_y);  
trace(”==============”);  
};  
}

I would greatly appreciate any guidence, thank you,  
-Jimbo

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [July 8, 2004, 8:09am UTC](https://forum.kirupa.com/t/fmx-can-not--x-value-past-zero-with-small-numbers/56807/2 "2004-07-08T08:09:26Z")

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Hi there,

Use bigger steps 🙂 To know more about Flash limitations, read this: [http://www.kirupaforum.com/forums/showthread.php?t=16877](http://www.kirupaforum.com/forums/showthread.php?t=16877)

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/kirupa/original/3X/6/2/621e5c11736f46532526e61be85940af4230f3e5.png) [@system](https://forum.kirupa.com/u/system)\
**Post date:** [July 8, 2004, 2:34pm UTC](https://forum.kirupa.com/t/fmx-can-not--x-value-past-zero-with-small-numbers/56807/3 "2004-07-08T14:34:44Z")

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Thank You for your help!  
-Jimbo