An inverse function reverses the effect of a bijective function.
What Is Inverse Function?
An inverse function reverses the effect of a bijective function.
Examples of Inverse Function
1
If f(x)=x+4, then f⁻¹(x)=x−4.Formula and Key Points
Formula / rule
f⁻¹(f(x))=x
- Know the definition and standard notation for Inverse Function.
- Be able to recognise or compute inverse function in a small example.
- Connect the concept to nearby topics in the same subject before using it in larger CSE problems.
Why This Matters in Computer Science
Used to model input-output behaviour in programs, APIs, algorithms, transformations and machine-learning pipelines.
Related Math Terms
Inverse Function: Frequently Asked Questions
What is Inverse Function?
An inverse function reverses the effect of a bijective function.
Why is Inverse Function useful in computer science?
Used to model input-output behaviour in programs, APIs, algorithms, transformations and machine-learning pipelines.