I bought a new calculator today. The old one spoiled. There is a black spot on the screen. Virus? =X It cost me my mum $18. The box said that it has 280 functions. I looked through it briefly. So complicated. So many functions. Wonder when I'll know how to use those modes. I guess have read through it thoroughly and test it. You know, my prelims are in progress and my O'Level is near. Very near...

Old calculator