fun fib 0 = 0 | fib 1 = 1 | fib n = fib (n - 1) + fib (n - 2)
Get better at programming through fun, rewarding coding exercises that test your understanding of concepts with Exercism.
Write a function to convert from normal numbers to Roman Numerals.
Implement basic list operations.
Find the difference between the square of the sum and the sum of the squares of the first N natural numbers.
Easy to define and easy to use, with robust pattern matching and pattern-exhaustiveness.
Powerful and flexible system supporting information hiding and genericity.
Safety first! Strong guarantees about the correctness of programs at compile time.
All the benefits of functional programming with some imperative features.
The compiler can often calculate type from context. Programs become concise and easier to write.
Abstractions across data types - think templates in C++ or generics in Ada.
Every language has its own way of doing things. Standard ML is no different. Our mentors will help you learn to think like a Standard ML developer and how to write idiomatic code in Standard ML. Once you've solved an exercise, submit it to our volunteer team, and they'll give you hints, ideas, and feedback on how to make it feel more like what you'd normally see in Standard ML - they'll help you discover the things you don't know that you don't know.Learn more about mentoring
The Standard ML track on Exercism has 33 exercises to help you write better code. Discover new exercises as you progress and get engrossed in learning new concepts and improving the way you currently write.See all Standard ML exercises
The best part, it’s 100% free for everyone.