Error in Seidel Constant calculations

Question

I'm writing my own library for Python, which contains many different ready-made algorithms and mathematical examples. But now I cannot write the calculations of the Seidel constant. Error on line 12. To run this code you need the "numpy" library

Thanks for help!!!

Code:
https://www.sololearn.com/compiler-playground/czOYHokXR1eU

Answer 1

I found a solution. In the code in the link you will see the code before and after!!!

Answer 2

Will you change the title from

Error in Seidel Constant calculations

to

Error in Seidel Constant calculations [Solved]

so people scanning the titles know they don't need to open it?