SCREW MODULUS FUNCTION. ):

seriously, IT MAKES NO FREAKING SENSE!
AGRH. i dont get it AT ALL. i dont get the stupid a-b= a-b or b-a ?!??!!?!? what the heck is this?

and i'm going out for dinner. how nice. i shall bring my amath file out and look like some idiot. BLAH. i feel S T U P I D. ): oh wells. i officially only completed 4chapters of amath. and the exam's tomorrow. plus my physics is HALF WAY THROUGH. literally HALF.