My first scientific calculator was the Casio FX-992S which I bought it in Secondary 2 in 1998 when I was 14 years old. It lasted me through my secondary education, polytechnic education as well as my 2 years and 2 months in national service. It finally broke down during my 2nd year in university in 2007 just few hours before my exams! The calculator lasted me for 9 years! After it broke down, I borrowed my brother scientific calculator, he is also using the Casio FX-992S and he got it during his secondary school days. I predict it will have another 3 more years lifespan as he is going to national service soon if his calculator followed the timeline of my calculator.
I went to NUS Co-Op to see if there is any calculator to buy, to my surprise the FX-992S still exists! However there is another modal also from Casio called the “Natural Textbook Display” FX-991ES. I was contemplating between the both, the price difference is about SGD$3. End up I went for the good old trusted FX-992S for SGD$29.70.


FX-992S Box And Manual


FX-992S Cover And Front View

The New FX-992S

The Old FX-992S
The only difference between the FX-992S now and the FX-992S 9 years ago is that the 9 years ago button area is made of metal, whereas now it is made of plastic.
Lol, can tell that you have deep feelings for your calculator.
actually u should have bought the new model instead.. more worth.. wun phase out..
but actually calculators wun phase out ba..
Surprising you can use this calculator for so long. Think mine already kaboom quite sometime ago. Now it seems I won’t touch a calculator with less than 2 lines of dot matrix screen real estate!
Come to think about it, I still have a working scientific calculator which I still have (but used) since secondary school, think it’s one generation before the fx-9xx series, it does not have a hard slide on cover but have this soft black plastic flip which you can open it like a book.
Oh that! I remember my cousin is using it. lol
so how do you enter a number to a negative power? For example, [(1 minus 1.006 to the power of -276) divided by 0.006] multiply by 1798.97? i’m supposed to get 242,306.86 but i just can’t get it in this model
Press X^Y button?
Press 1 – 1.006 then the answer press “X^Y” button then press 276 followed by the ” /-” button then ans divided by 0.006?
you actually got the answer by pressing the steps given? i just can’t get it and i’m stuck using this calculator model.. i wonder how i got through my ‘o’ levels with this calculator back then..
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