gh-90345: Add math.integer.isqrt_rem()

[skirpichev]

• Issue: Optionally support rounding for math.isqrt() #90345

[read-the-docs-community]

Documentation build overview

📚 cpython-previews | 🛠️ Build #32826245 | 📁 Comparing b1a0063 against main (1daad8a)

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14 files changed · ± 14 modified

± Modified

• index.html
• library/datatypes.html
• library/difflib.html
• library/gzip.html
• library/math.integer.html
• library/pprint.html
• library/ssl.html
• library/tarfile.html
• library/threading.html
• library/unittest.mock.html
• and 4 more...

[picnixz]

Suggested change

	Return a pair of values (s,t) such that s=isqrt(n) and t=n-s*s.
	The remainder *t* will be zero, if *n* is a perfect square.
	For a nonnegative integer *n*, return the pair of integers *(s, t)*
	such that ``s = isqrt(n)`` and ``t = n - s*s``.
	The remainder *t* is zero, if *n* is a perfect square.

This is where I wish we could have mathjax.

[skirpichev]

Added with minor change (tuple formatted as verbatim).