Brutal Math classes in college?

Relatively new to the forum here, I'm a junior and I genuinely enjoy math but I'm aware college-level courses could be a different beast. Can you guys tell me about the most difficult Math classes in college? I'd appreciate any insights or personal experiences!

Great to see your interest in Mathematics and willingness to take challenging courses! While of course it varies by individual, here are a few notorious courses that are often described the most challenging by many students.

1. Linear Algebra: This class is dense and theoretical, and it's often the first time students encounter proofs in depth, which can be quite an adjustment.

2. Differential Equations: These types of equations are those which involve an unknown function and its derivatives. This course may involve complex computations and problem-solving techniques, which can be tough.

3. Real Analysis: Also known as "advanced calculus," this course delves into the rigorous, theoretical underpinnings of calculus. It's often a student's first encounter with formal mathematical proofs which can be quite challenging.

4. Abstract Algebra: This course may deal with subjects like group theory, ring theory, field theory, and module theory. The abstract concepts and proofs can make this class difficult.

Remember, before taking any of these, you will probably need to complete some prerequisites, like Calculus and basic Linear Algebra.

Finally, remember that everyone's experience is different. What's super challenging for one student might be a breeze for another. It's important to study what you enjoy and not just what you perceive as "brutal" or difficult. If you love the subject and challenge yourself within it, you'll likely be successful. And don't forget to reach out for help – there are plenty of resources available like professors, TA's, etc. that can provide assistance when the going gets tough. Best of luck with your mathematical journey!