# How do I associate a math operation with node of wiring diagram?

**URL:** <https://discourse.julialang.org/t/how-do-i-associate-a-math-operation-with-node-of-wiring-diagram/101503>\
**Category:** Modelling & Simulations\
**Tags:** question, catlab\
**Created:** [July 12, 2023, 12:54am UTC](https://discourse.julialang.org/t/how-do-i-associate-a-math-operation-with-node-of-wiring-diagram/101503 "2023-07-12T00:54:59Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![nikit\_goku](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/nikit_goku/32/49765_2.png) [@nikit\_goku](https://discourse.julialang.org/u/nikit_goku)\
**Post date:** [July 12, 2023, 12:54am UTC](https://discourse.julialang.org/t/how-do-i-associate-a-math-operation-with-node-of-wiring-diagram/101503/1 "2023-07-12T00:54:59Z")

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Hello, I am trying to associate a mathematical operation with the node of the wiring diagram, for example I may want to pass an integer as an input, and want take a square root of that integer and return the value at the other end. The node has to perform the math operation. Is that possible using Catlab? If so how can I go on with the implementation? Thank you!