Add an AP, GP and HP calculator together with options to calculate sum of n terms and nth term

[debangi29]

Is your feature request related to a problem? Please describe.
Progression sums are quite often when we talk of mathematics, physics and even chemistry.
Arithmetic Progression, Geometric Progression and Harmonic progression are the most common

Describe the solution you'd like

An extension with three options

1. Arithmetic Progression
2. Geometric Progression
3. Harmonic progression
   Which in itself will have 2 options each
4. Nth term
5. Sum of n terms

Describe alternatives you've considered

Calculating manually which takes too much time and can be much inaccurate

Additional context

What problem is this feature trying to solve?
Time saving for Students , Frequently useful; Accuracy
How do we know when the feature is complete?
A PR will be made

[github-actions]

Thank you for creating this issue! 🎉 We'll look into it as soon as possible. In the meantime, please make sure to provide all the necessary details and context. If you have any questions or additional information, feel free to add them here. Your contributions are highly appreciated! 😊

You can also check our CONTRIBUTING.md for guidelines on contributing to this project.

[Sulagna-Dutta-Roy]

@debangi29 as per the new contribution guidelines. One contributor shouldn't have 200 points in a single repo. I can see that you've done so many PRs here.

[debangi29]

Yeah.. saw it now, so if someone's contribution is more than 200 will that be removed?

[Sulagna-Dutta-Roy]

Yes it will be removed and marked as spam

[github-actions]

Hello @debangi29! Your issue #1111 has been closed. Thank you for your contribution!