added star delta converter module

[Yosef-6]

Describe your change:

Added a new module to electronics directory

• Add an algorithm?
• Fix a bug or typo in an existing algorithm?
• Documentation change?

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new Python files are placed inside an existing directory.
• All filenames are in all lowercase characters with no spaces or dashes.
• All functions and variable names follow Python naming conventions.
• All function parameters and return values are annotated with Python type hints.
• All functions have doctests that pass the automated testing.
• All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
• If this pull request resolves one or more open issues then the description above includes the issue number(s) with a closing keyword: "Fixes #ISSUE-NUMBER".

[rohan472000]

Why only DC, how about including AC resistors examples???

[Yosef-6]

ok working on it including impedances to make it general

[rohan472000]

Still the real part is working, you need to find angle between real and imaginary, then find star-delta.

[Yosef-6]

I didn't understand sir why do I have to convert the impedances into polar form while that is handled internally by the division, multiplication operator on complex numbers in python meaning its same even if I converted to polar and then do the operations.

[rohan472000]

Yes ..i didn't know about this feature of the complex type in python.

[Yosef-6]

Thanks sir
could you take a look at this pr #9535 am an electrical engineer am developing the electronics directory

[Yosef-6]

why is this pr not merging after being aproved rohan472000 ?

[rohan472000]

why is this pr not merging after being aproved rohan472000 ?

Repo maintainer will also review and then only it will be merged.

[Yosef-6]

why is this pr not merging after being aproved rohan472000 ?

Repo maintainer will also review and then only it will be merged.

Got it 👍 am new to git and open source