Inverse function (bijection requirement) (Inverse swaps input/output; exists iff f is bijective X→Y)
jee-mainjee-advanced
Inverse swaps input/output; exists iff f is bijective X→Y
What each symbol means
| Symbol | What it stands for |
|---|---|
| f | Bijection X → Y |
| f^{-1} | Inverse Y → X |
When to use this
Only well-defined for bijections onto the stated codomain (or restrict codomain to range).