The story of my calculator

I've never been a fan of graphics calculators. They're expensive, hard to use and generally useless but my opinion changed yesterday when I witnessed the most valiant effort ever performed by a graphics calculator

An hour into the Maths Exam I needed my neglected Graphics Calculator (who I later named Srgt. Yadav after Yogendra Singh Yadav). I turn it on to be greeted by
"Batteries critically low, replace immediately." I look at the exam, there are heaps of questions which my old calculator, speedy as it is, cannot do.
"Don't die on me graphics calculator!" I scream, in my head.
The screen fades but the calculator is still functional. I quickly punch in some questions, it's still going, I punch in some more and it handles it like a pro. This went on for about 45 minutes, me relying on a dying calculator. It survived the whole exam, on the last question as I wrote the answer down the poor thing died. It had given it's life fighting the war against math questions.

RIP Srgt. Yadav, without your determined fight against time I would have failed the math's exam.