Ask an engineer or an engineering student what his/her bestfriend is and the most likely answer will be the calculator. No, it is not the mathematician's bestfriend, for they hardly deal with exact figures and computations.
No, the engineer is more well-accustomed with the calculator than anybody else. Well, I must emphasize that I am talking about scientific calculators, for other professionals like accountants will surely raise their protest against this claim. The accounting calculator is in a world of its own, far removed from what us normal beings live in. So I live accountants and their calculators in peace.
If there were no scientific calculators, engineers will be left alone, handicapped. Quite surely, they can proceed on with their computations, but there is no doubt that projects will be delayed, billions of dollars will be lost, and we will not be as technologically developed as we are now. We owe a lot of what we have to the scientific calculator. Thank goodness they are here.
Despite that I am here, without the aid of my trusty calculator. No sines, no cosines, no tangents. No trigonometric computations. How can I go on with my coursework without its help?
My mobile phone has its own scientific calculator, but I am afraid it will never match up to my main calculator. Typing numerous figures won't be the same if you do it with one hand, after all.