# Pynq custom overlay of multidimensional array calculation

**URL:** <https://discuss.pynq.io/t/pynq-custom-overlay-of-multidimensional-array-calculation/1541>\
**Category:** Support\
**Created:** [July 22, 2020, 6:30am UTC](https://discuss.pynq.io/t/pynq-custom-overlay-of-multidimensional-array-calculation/1541 "2020-07-22T06:30:59Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![TingShen\_Kuo](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/tingshen_kuo/32/914_2.png) [@TingShen\_Kuo](https://discuss.pynq.io/u/TingShen_Kuo)\
**Post date:** [July 22, 2020, 6:30am UTC](https://discuss.pynq.io/t/pynq-custom-overlay-of-multidimensional-array-calculation/1541/1 "2020-07-22T06:30:59Z")

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Hi everyone, i am a student studying in college, but due to some special reason i have to touch pynq board and need to write some custom pynq overlays.  
I have follow the tutorial successfully to create my own adder overlay. The board i use is ultra96 v2.  
I am wondering that if there is any code similar to software language about multidimensional array calculation such as adding two arrays together or something?  
The following is the tutorial codes of array multiplication with integer.

 ![image](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/0/0a0ea5cdc50859367d9e1e56e70e9f7325cc0f88.png)  
 ![image](https://us1.discourse-cdn.com/flex019/uploads/pynq1/original/2X/e/e8f66a8425f40629ade15e4fe8fc5a169df97d2c.png)  
I really have no idea about some professional hardware knowledge 🤣  
Thank you for your helps 😂  
Tim

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**Author:** ![rock](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/rock/32/32_2.png) [@rock](https://discuss.pynq.io/u/rock)\
**Post date:** [July 22, 2020, 4:18pm UTC](https://discuss.pynq.io/t/pynq-custom-overlay-of-multidimensional-array-calculation/1541/2 "2020-07-22T16:18:49Z")

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I think you can check the numpy package and examples there.

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<div class="post-metadata">

**Author:** ![TingShen\_Kuo](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/tingshen_kuo/32/914_2.png) [@TingShen\_Kuo](https://discuss.pynq.io/u/TingShen_Kuo)\
**Post date:** [July 24, 2020, 6:44am UTC](https://discuss.pynq.io/t/pynq-custom-overlay-of-multidimensional-array-calculation/1541/3 "2020-07-24T06:44:48Z")

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Hi, rock!  
Do you have some tutorial links?  
Thanks a lot!  
Tim