A good and fun morning was ruined by this damn calculator,name SHARP EL-509WM.He destroyed my maths test today.While i was calculating my equations and came across a negetive two,i pressed -2 +something(which i forgotten) and pressed = .It suddenly came out "ERROR 1".Ok then,never mind.I tried my second time.This time i pressed Bracket and put in my "wanted" equation and press equal.Ok i was fed-up.It came out "ERROR 2".I tried more than 5 times and finally borrowed my friend's calculator.After the test,i nearly smashed that calculator but i told myself :"It's just a calculator."hai.Never mind.Then i went for my next lesson feeling sad due to the impact done by SHARP EL-509WM on my maths test.

well..my advice is not to buy SHARP EL-509WM..he's an idiot!!