# Atan2 (x,y) formula in Thunkable X Cross Platform
**URL:** https://community.thunkable.com/t/atan2-x-y-formula-in-thunkable-x-cross-platform/239267
**Category:** Questions about Thunkable X
**Created:** [September 23, 2019, 2:49am UTC](https://community.thunkable.com/t/atan2-x-y-formula-in-thunkable-x-cross-platform/239267 "2019-09-23T02:49:07Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@danielemazza67b](https://community.thunkable.com/u/danielemazza67b)
#### Post date: [September 23, 2019, 2:49am UTC](https://community.thunkable.com/t/atan2-x-y-formula-in-thunkable-x-cross-platform/239267/1 "2019-09-23T02:49:07Z")
Does Thunkable Cross Platform have the atan2 (x,y) formula? I saw the atan but not the atan2 (x,y). I need it for the Distance matrix formula. Thanks.
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### Author:  [@CBVG](https://community.thunkable.com/u/CBVG)
#### Post date: [September 23, 2019, 3:13am UTC](https://community.thunkable.com/t/atan2-x-y-formula-in-thunkable-x-cross-platform/239267/2 "2019-09-23T03:13:47Z")
Make your own function then.
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### Author:  [@danielemazza67b](https://community.thunkable.com/u/danielemazza67b)
#### Post date: [September 24, 2019, 1:34pm UTC](https://community.thunkable.com/t/atan2-x-y-formula-in-thunkable-x-cross-platform/239267/3 "2019-09-24T13:34:39Z")
When I select the “atan” block it is linked to a number (45 by default). How can you attach the “/ division” block in that way in cross platform?
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### Author:  [@danielemazza67b](https://community.thunkable.com/u/danielemazza67b)
#### Post date: [September 24, 2019, 1:42pm UTC](https://community.thunkable.com/t/atan2-x-y-formula-in-thunkable-x-cross-platform/239267/4 "2019-09-24T13:42:23Z")
How can you isolate the “+” block? For me the “+” block comes with a value before and after that I cannot remove. Also Square root comes with a variable that I cannot remove. Sorry…I am just starting with Thunkable…maybe I am not able to understand how blocks work. Thanks for any suggestion
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### Author:  [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)
#### Post date: [September 24, 2019, 3:46pm UTC](https://community.thunkable.com/t/atan2-x-y-formula-in-thunkable-x-cross-platform/239267/5 "2019-09-24T15:46:27Z")
> [@danielemazza67b](#):
>
> How can you attach the “/ division” block in that way in cross platform?
This is called a shadow block - it’s just a placeholder and can be replaced by any Math block you like.
The intent here is to communicate that this block expects a numeric input as opposed to say, an object or a piece of text.
* * *
> [@danielemazza67b](#):
>
> How can you isolate the “+” block?
If you right click on the block and choose the `external inputs` option it will change to this shape. There are lots of blocks that support doing this, and sometimes it can make blocks a little bit easier to read.
Hope that helps!
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### Author:  [@danielemazza67b](https://community.thunkable.com/u/danielemazza67b)
#### Post date: [September 24, 2019, 10:31pm UTC](https://community.thunkable.com/t/atan2-x-y-formula-in-thunkable-x-cross-platform/239267/6 "2019-09-24T22:31:48Z")
Thanks so much!
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### Author:  [@ioannis](https://community.thunkable.com/u/ioannis)
#### Post date: [November 8, 2024, 12:08pm UTC](https://community.thunkable.com/t/atan2-x-y-formula-in-thunkable-x-cross-platform/239267/7 "2024-11-08T12:08:53Z")