I tried my best but the result doesn't match the effort I've put in. First when I know my result I freaked out and questioned my competent. Am I mathematically-inept? Am I cut out for a Physics Phd? End up with ~70% on this course and I'm taking Calc 2 this December. I need to maintain >=3.00 GPA for my scholarship program. Could you guys give me some piece of advice? Sorry for my broken English.