![The Trigonometry of Shopping](https://www.exampaper.com.sg/blog/wp-content/themes/exampaper/timthumb.php?src=https%3A%2F%2Fwww.exampaper.com.sg%2Fblog%2Fwp-content%2Fuploads%2F2008%2F09%2Fshopping-and-trigonometry.jpg&w=100&h=90&zc=1&q=100)
As devotees of The Temple enter the dark, dark period of end-of-year exams and the O-Levels, traces of their past worldly, materialistic lives (which they are supposed to have given up by oath a month ago) tend to show up every now and then: Don’t forget that minus (-) sign in the last equation after […]