# Can you explain what's these code mean?

**URL:** <https://forum.kirupa.com/t/can-you-explain-whats-these-code-mean/251350>\
**Category:** Uncategorized\
**Created:** [February 7, 2008, 5:00pm UTC](https://forum.kirupa.com/t/can-you-explain-whats-these-code-mean/251350 "2008-02-07T17:00:31Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![basepilot](https://avatars.discourse-cdn.com/v4/letter/b/f0a364/32.png) [@basepilot](https://forum.kirupa.com/u/basepilot)\
**Post date:** [February 7, 2008, 5:00pm UTC](https://forum.kirupa.com/t/can-you-explain-whats-these-code-mean/251350/1 "2008-02-07T17:00:31Z")

</div>

Can someone explain the differences between these code for me please?

thanks

```auto
_root.image_mc._x = _root.image_mc._x + (Stage.width / 2 - _root.image_mc._x) * speed;
_root.image_mc._y = _root.image_mc._y + 100 * speed;

```

and

```auto
_root.image_mc._x = _root.image_mc._x + (Stage.width / 2 - _root.image_mc._x) * speed;
_root.image_mc._y = _root.image_mc._y + (Stage.height / 2 - _root.image_mc._y) * speed;

```