Root Calculator

The nth root of x is x^(1/n): √64 = 8 because 8² = 64, and ∛64 = 4. Odd roots handle negatives cleanly (∛−27 = −3); even roots of negatives leave the real numbers entirely.

Bracket with known squares or cubes: √50 sits between √49 = 7 and √64 = 8, nearer 7. One round of averaging (7 + 50/7)/2 ≈ 7.07 nails it to two decimals — the same Newton iteration your calculator uses internally.