[Term Entry] C++ Math Functions: `isfinite()`

[Dusch4593]

Reason/inspiration (optional)

Under c++/concepts/math-functions/terms/, create a new term entry for the isfinite() function.

• In the terms/ folder, make a new folder called isfinite
• Inside the isfinite folder, create a new markdown file called isfinite.md
• Inside the file, be sure to include a "Syntax" section with a ```pseudo code snippet.
• Let's include an "Example" section with a ```cpp code snippet.
• Lastly, let's include a "Codebyte Example" with a runnable ```codebyte/cpp

Please refer to the entry templates, content standards, and markdown style guide when working on the PR for this issue.

Entry Type (select all that apply)

New Term for Existing Concept Entry

Code of Conduct

• [X] I agree to follow Codecademy Doc's Code of Conduct

For Maintainers

• [X] Labels added
• [x] Issue is assigned

[Dusch4593]

@Hitarth-Kothari thanks for taking on this issue and opening a PR! 🙏🏻

Could you comment back on this thread so I can formally assign you to this?

[Hitarth-Kothari]

Yep

[Dusch4593]

Awesome, thanks @Hitarth-Kothari! Anytime you wanna open a PR to address one of these issues, feel free to ask to be assigned beforehand and we'll assign you. 😄