You have force vectors in 3D space, each with coordinates . Your task: determine if they're in equilibrium, meaning their sum is the zero vector . Output YES if balanced, NO otherwise.
This teaches you to work with multi-dimensional data and write functions that return boolean values. You'll sum vectors component-wise and check a condition, perfect for practicing function design.
Think about this before reading on: if you have forces , , and , are they balanced? What does balanced mean mathematically?