Study calculus.
not because exams exist.
because reality moves.
โข derivatives โ how things change
โข integrals โ how change accumulates
โข limits โ what happens at the edge
โข gradients โ where systems want to go
โข differential equations โ how nature evolves
motion, heat, fluids, control, optimization, robotics, ML.
all of it speaks calculus.
without it, you see outputs.
with it, you see dynamics.