[Feature] Add a tan calculator

[nagalakshmi08]

[Feature] Add a tan calculator

[github-actions]

Hey @nagalakshmi08, Welcome to the project CalcDiverse! 🎊
Thanks for opening an issue! 🙌 Please wait for the issue to be assigned. Happy Coding!! ✨

[isid555]

@nagalakshmi08 @Rakesh9100
Kindly assign this issue to me.

[shawnsd69]

Subject: Request for Issue Assignment

Dear @Rakesh9100 ,

I hope this message finds you well. I’m eager to contribute to the CalcDiverse and would like to take on a task that could help move the project forward. If possible, could you please assign me this issue that aligns with my skills? I’m particularly interested in working on recent open source project, but I’m open to anything that needs attention.

Thank you for considering my request. I’m looking forward to your guidance and contributing to the project.

Best regards,
Shawn